Gem Price Guide

How to Use the IGS Gem Price Guide

A faceted gem’s price is based on an evaluation of its physical and optical properties. These are often referred to as the “Four Cs” — color, clarity, cut, and carat. (Here’s a handy introduction to how gemologists grade those properties).

However, despite well-established grading systems for color, clarity, and cut, any evaluation of these properties is inherently subjective. Even gemologists and appraisers may disagree about the quality of a specific stone, so disagreements regarding gem prices do occur.

Ultimately, the price of a gem is what one willing buyer and one willing seller can actually agree upon. Our gem price guide is just that — a guide. Keep in mind that gems are sold outside these price ranges every day. See our article on pricing faceted gems for more information.

Prices listed are retail in US dollars. Wholesale is generally?one third of retail. High-end gems are often marked up 30% or less, while low-priced, more “commercial quality” faceted gems are often marked up considerably more.

Unless otherwise noted, all prices listed below are for cut gems, not rough or raw crystal forms, and all?weights are in carats.

The IGS Gem Price Guide

You can click on the links below to go directly to the listing for a specific gem.

• Actinolite
• Agate
• Alexandrite
• Allanite
• Amber
• Amethyst
• Ammolite
• Andalusite
• Anglesite
• Apatite
• Apophyllite
• Aquamarine
• Aragonite
• Axinite
• Azurite
• Barite
• Benitoite
• Beryl
• Brazilianite
• Bytownite
• Calcareous Concretions / Non-Nacreous Pearls
• Calcite
• Celestite
• Cerussite
• Chambersite
• Chrysoberyl
• Chrysocolla
• Chrysoprase
• Cinnabar
• Citrine
• Colored Diamonds
• Coral
• Crocoite
• Cuprite
• Danburite
• Datolite
• Diaspore
• Diopside
• Emerald
• Enstatite
• Epidote
• Fluorite
• Garnet
• Gold In Quartz
• Iolite
• Kunzite
• Lapis Lazuli
• Malachite
• Moissanite
• Moldavite
• Moonstone
• Opal
• Oregon Sunstone
• Pearls
• Peridot
• Phenakite
• Quartz
• Rhodochrosite
• Ruby
• Sapphire
• Sapphirine
• Scapolite
• Sphalerite
• Spinel
• Sugilite
• Sunstone
• Tanzanite
• Titanite
• Topaz
• Tourmaline
• Turquoise
• Wulfenite
• Zircon

Actinolite Value

Accompanying value information:

Actinolite Value, Price, and Jewelry Information

Cut	Weight	Price
Cat’s Eye	1 carat	/ct

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Agate Value

Accompanying value information:

Agate Buying Guide

Agate Value, Price, and Jewelry Information

Cabochons	All Sizes
Agate	$.50 to /ct
Fire Agate	to /ct
Blue Chalcedony	to /ct

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Alexandrite Value

Accompanying value information:

Alexandrite Value, Price, and Jewelry Information

Alexandrite Buying Guide

Is Synthetic Alexandrite Real Alexandrite?

Top Color: G 5/2 and R or slpR 5/3

Faceted	to .5 carat	.5 to 1 carat	1 carat plus
Top Red/Green	,500 to ,000/ct	,000 to ,000/ct	to ,000/ct
Medium Red/Green	,500 to ,000	,500 to ,000/ct	to ,000/ct
Slight Red/Green		to ,500/ct	to ,000/ct

 

Cabochons	.3 to 1.5 carat	1.5 carats plus
Strong red/green	to ,500/ct	to ,000/ct

 

Cat’s Eye	All sizes
Strong red/green	,500 to ,000/ct

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Allanite Value

	All sizes
Faceted	to /ct
Cabochons	to /ct

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Amber Value

Accompanying value information:

Amber Buying Guide

Amber Value, Price, and Jewelry Information

Cabochons	All sizes
With insect inclusions	- per gram
Plain cabochons	- per gram

Prices may be higher for pieces with inclusions of rare insects.

Faceted	All sizes
Beads or drops	- per gram

Amber is rarely faceted. Please Note:?Amber is commonly sold by grams, not carats. 1 gram = 5 carats.

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Amethyst Value

Accompanying value information:

Amethyst Value, Price, and Jewelry Information

Amethyst Buying Guide

Top Color: P, bP 7/5

Faceted	.5 to 1 carat	1 carat plus
Siberian	to /ct	to /ct
Medium	to /ct	to /ct
Light	to /ct	to /ct

 

Cabochons	1 carat plus
Dark	to /ct
Medium	to /ct

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Ammolite Value

Accompanying value information:

Ammolite Buying Guide

Ammolite Value, Price, and Jewelry Information

	All sizes
Naturals	to /ct
Doublets	to /ct
Triplets	to /ct

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Andalusite Value

Accompanying value information:

Andalusite Value, Price, and Jewelry Information

Top Color: YG 5/2 and O 5/4

Faceted	1 to 4 carats	4 carats plus
Top color	to /ct	to ,000/ct
Medium color	to /ct	to /ct

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Anglesite Value

Accompanying value information:

Anglesite Value, Price, and Jewelry Information

Faceted	10 carat plus
	to /ct

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Apatite Value

Accompanying value information:

Apatite Value, Price, and Jewelry Information

Faceted	.3 to 1 carat	1 to 3 carats	3 carats plus
“Neon Blue”	to /ct	to /ct	to /ct
Brazil Blue	to /ct	to /ct	to /ct

Blue Cat’s Eye	3 carats plus
	to /ct

OTHER COLORS

Faceted	All sizes
	to /ct

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Apophyllite Value

Accompanying value information:

Apophyllite Value, Price, and Jewelry Information

Faceted	3 to 10 carats
	to /ct

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Aquamarine Value

Accompanying value information:

Aquamarine Value, Price, and Jewelry Information

Aquamarine Buying Guide

Aquamarine Color and Heat Treatment

Top Color: GB 4/4

Faceted	.5 to 1.5 carats	1.5 to 3 carats	3 carat plus
Dark	to /ct	to ,000/ct	to ,000/ct
Medium	to /ct	to /ct	to /ct
Light	to /ct	to	to /ct

Cabochons	All Sizes
Plain	to /ct
Cat’s Eye	to /ct

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Aragonite Value

Accompanying value information:

Aragonite Value, Price, and Jewelry Information

Faceted	5 carats plus
	to /ct

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Axinite Value

Accompanying value information:

Axinite Value, Price, and Jewelry Information

Faceted	1 to 5 carats
	to /ct

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Azurite Value

Accompanying value information:

Azurite Value, Price, and Jewelry Information

Cabochons	All sizes
	to /ct

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Barite Value

Accompanying value information:

Barite Value, Price, and Jewelry Information

Faceted	1 carat plus
Yellow	to /ct
Colorless	to /ct

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Benitoite Value

Accompanying value information:

Benitoite Value, Price, and Jewelry Information

Faceted	.1 to .5 carats	.5 to 1 carat	1 carat plus
	to ,000/ct	to ,500/ct	to ,000/ct

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Beryl Value

Accompanying value information:

Beryl Value, Price, and Jewelry Information

Red	.1 to 1 carat	1 carat plus
	,600 to ,000/ct	to ,000/ct

Fine Color Morganite: slpR 3/4

Morganite	1 to 10 carats	10 carat plus
	to /ct	to /ct

Fine Color Yellow: Y 4/4

Gold & Yellow	1 to 10 carats	10 carat plus
	to /ct	to /ct

Fine Color Green: slyG 4/3

Green	1 to 20 carats	20 carats plus
	to /ct	to /ct

Goshenite	All sizes
	to /ct

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Brazilianite Value

Accompanying value information:

Brazilianite Value, Price, and Jewelry Information

Faceted	1 carat plus
	to /ct

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Bytownite Value

Accompanying value information:

Bytownite Value, Price, and Jewelry Information

Faceted	1 to 3 carats
	TO /ct

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Calcareous Concretions / Non-Nacreous Pearls Value

Accompanying value information:

Calcareous Concretions Value, Price, and Jewelry Information

Conch Pearls

Accompanying value information:

Conch Pearl Buying Guide

All sizes

to ,000/ct

Tridacna Pearls

Accompanying value information:

Tridacna Pearl Buying Guide

All Sizes

- / ct

Melo Pearls

Accompanying value information:

Melo Pearl Buying Guide

All Sizes

- ,000 / ct

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Calcite Value

Accompanying value information:

Calcite Value, Price, and Jewelry Information

Faceted	5 to 100 carats
	to /ct

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Celestite Value

Accompanying value information:

Celestite Value, Price, and Jewelry Information

Faceted	All sizes
	to /ct

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Cerussite Value

Accompanying value information:

Cerussite Value, Price, and Jewelry Information

Faceted	5 carats plus
	to /ct

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Chambersite Value

Accompanying value information:

Chambersite Value, Price, and Jewelry Information

Faceted	.10 carats plus
	to /ct

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Chrysoberyl Value

Accompanying value information:

Chrysoberyl Value, Price, and Jewelry Information

Is My Alexandrite Just A Color-Change Chrysoberyl?

Top Color: styG, YG, gY 3/4

Faceted	1 to 7 carats
Color Change	,100 to ,000/ct
Fine Green	to ,000/ct.
Bright Yellow	to /ct
Brownish Yellow	to /ct

Cat’s Eye	All sizes
	/ct to ,000/ct

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Chrysocolla Value

Accompanying value information:

Chrysocolla Value, Price, and Jewelry Information

Sillicated	All sizes
Solid Color	to /ct
Parrot Wing	/ct

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Chrysoprase Value

Accompanying value information:

Chrysoprase Buying Guide

Chrysoprase Value, Price, and Jewelry Information

Cabochons	All sizes
	to /ct

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Cinnabar Value

Accompanying value information:

Cinnabar Value, Price, and Jewelry Information

Cabochons	All sizes
	to /ct

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Citrine Value

Accompanying value information:

Citrine Value, Price, and Jewelry Information

Citrine Buying Guide

Why are Topaz and Citrine Gemstones Misidentified?

Top Color:?O 6/4

Faceted	.5 to 1 carat	1 carat plus
Madeira		to /ct
Orange	to /ct	to /ct
Yellow	to	to /ct
Gold	to	to /ct

Cabochons	.5 to 1 carat	1 carat plus
Yellow to Orange	to /ct	to /ct

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Colored Diamonds Value

Accompanying value information:

Fancy Colored Pink Diamond Buying Guide

Fancy Colored Blue Diamond Buying Guide

Fancy Colored Yellow Diamond Buying Guide

Color Grading Fancy Colored Diamonds

What is a Chameleon Diamond?

Black Diamonds	.6 - .10 carats	.10 - .24 carats	.25 to .33 carats	.35 to .50 carats	.51 to .74 carats	1 carat +
	– 120/ct	- /ct	- /ct	- /ct	- /ct	- ,275/ct

Note: these prices are for natural black diamonds. Most black diamonds on the market are treated to color. Their value is in the tens of dollars per carat.

Brown Diamonds	.33 to .9 carats	1 to 1.5 carats
VS2	,000/ct	to ,650/ct
SI2	/ct	to ,500/ct
I1	to /ct	to ,500/ct

Natural Fancy Colors	.1 to .99 carats	1 carat plus
Yellow/Brown	to ,000/ct
Yellow SI to I1	to ,200/ct
Yellow SI1 to VVS2	to ,000/ct	,000 to ,000/ct
Orange SI1 to I1	to ,000/ct

Irridated Fancy Colors	.1 to .99 carats	1 carat plus
Yellow SI1 to I1	to ,000/ct	to ,000/ct
Green SI1	to /ct	to ,000/ct
Blue SI1	to ,000/ct	to ,000/ct
Pink SI1	to ,300/ct	to ,000/ct

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Coral Value

Accompanying value information:

Precious Coral Buying Guide

Coral Value, Price, and Jewelry Information

Cabochons	All sizes
Red	to /ct
Deep Pink	to /ct
Light Pink	to /ct

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Crocoite Value

Accompanying value information:

Crocoite Value, Price, and Jewelry Information

Faceted	5 to 10 carats
	to /ct

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Cuprite Value

Accompanying value information:

Cuprite Value, Price, and Jewelry Information

Faceted	4 carats plus
	to /ct

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Danburite Value

Accompanying value information:

Danburite Value, Price, and Jewelry Information

Faceted	1 carat plus
Pink	to /ct
Colorless	to /ct
Other Colors	to /ct

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Datolite Value

Accompanying value information:

Datolite Value, Price, and Jewelry Information

Faceted	.5 to 1 carat	1 carat plus
	/ct	to /ct

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Diaspore Value

Accompanying value information:

A Short History of Diaspore and its trade names Zultanite and Csarite

An Introduction To Turkey’s Gemstones

Diaspore Value, Price, and Jewelry Information

Faceted	1 to 12 carats
	to /ct

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Diopside Value

Accompanying value information:

Diopside Value, Price, and Jewelry Information

Chrome Diopside	1 to 2 carats	2 carats plus
Faceted	to /ct	to /ct

Black Star	All sizes
	to /ct

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Emerald Value

Accompanying value information:

Emerald Quality Simplified

Ethiopian Emeralds (Better than Colombian?)

Emerald Buying Guide

Emerald Treatments and Alternatives

Emerald Fillers and Treatments

Is a Lab-Created Emerald a Real Emerald?

Emerald Value, Price, and Jewelry Information

Top origins: Colombian emeralds command premium prices. Recent finds in Ethiopia may also command premium prices. Prices assume colorless clarity enhancement, (no dyes.) Average brilliancy of 40 to 60%. Add up to 20% or deduct to 10% for other cutting. Prices for emerald cuts, round, ovals and pear. Add to 10% for marquis.

Colombian Emeralds

Top Color:?vstbG 5/5; bG 5/5 or 6/5; vslbG 5/5

cts	VVS	VS/SI	SI/I
<0.25	,500 - ,000	- ,700	- ,100
0.25-0.99	,000 - ,000	- ,000	- ,000
1.00-1.99	,000 - ,000	,000 - ,000	,200 - ,000
2.00-4.99	,000 - ,000	- ,000	,500 - ,000
5.00-7.99	,000 - ,000	,000 - ,000	,000 - ,500
8.00+	,000 - ,000	,000 - ,000	,000 - ,000

Very Good Color: vstbG 6/5; bG 5/5, 4/5 or 6/4; vslbG 5/5, 6/5

cts	VVS	VS/SI	SI/I
<0.25	- ,200	- ,200	-
0.25-0.99	,200 - ,000	,300 - ,000	- ,500
1.00-1.99	,800 - ,500	,000 - ,500	,200 - ,000
2.00-4.99	,000 - ,000	,800 - ,500	,500 - ,000
5.00-7.99	,500 - ,000	,500 - ,000	,000 - ,800
8.00+	,000 - ,000	,000 - ,000	,000 - ,500

Good Color: vstbG 4/5, 5/4, 6/4; bG 3/5, 4/4, 5/3, 6/3, 7/4; vslbG 3/5, 4/4, 4/5, 5/3, 6/4; G 4/5, 5/4,5/5, 6/5

cts	VVS	VS/SI	SI/I
<0.25	-	-	-
0.25-0.99	- ,300	- ,000	-
1.00-1.99	,500 - ,000	- ,500	-
2.00-4.99	,500 - ,000	,500 - ,000	- ,750
5.00-7.99	,000 - ,000	,500 - ,500	,500 - ,000
8.00+	,000 - ,000	,000 - ,000	,800 - ,000

Fair Color: vstbG 3/5, 4/4, 7/4; bG 3/4, 4/3, 7/3; vslbG 3/4, 6/3, 7/3, 7/4; G 3/5, 4/4, 5/3, 6/4

cts	VVS	VS/SI	SI/I
<0.25	-	-	-
0.25-0.99	-	-	-
1.00-1.99	- ,200	-	-
2.00-4.99	- ,000	- ,250	-
5.00-7.99	- ,500	- ,750	- ,250
8.00+	,000 - ,000	- ,000	- ,500

Other Emeralds

Top Color: vstbG 5/5; bG 5/5 or 6/5; vslbG 5/5

cts	VVS	VS/SI	SI/I
<0.25	,000 - ,500	- ,100	-
0.25-0.99	,200 - ,000	,000 - ,500	- ,700
1.00-1.99	,500 - ,000	,700 - ,500	,000 - ,000
2.00-4.99	,000 - ,500	,000 - ,000	,750 - ,750
5.00+	,000 - ,000	,000 - ,000	,000 - ,000

Very Good Color: vstbG 6/5; bG 5/5, 4/5 or 6/4; vslbG 5/5, 6/5

cts	VVS	VS/SI	SI/I
<0.25	-	-	-
0.25-0.99	- ,500	- ,300	- ,000
1.00-1.99	,250 - ,000	,300 - ,500	- ,000
2.00-4.99	,250 - ,000	,000 -	,000 - ,000
5.00+	,000 - ,000	,000 - ,500	,500 - ,500

Good Color: vstbG 4/5, 5/4, 6/4; bG 3/5, 4/4, 5/3, 6/3, 7/4; vslbG 3/5, 4/4, 4/5, 5/3, 6/4; G 4/5, 5/4,5/5, 6/5

cts	VVS	VS/SI	SI/I
<0.25	-	-	-
0.25-0.99	-	-	-
1.00-1.99	- ,000	- ,200	-
2.00-4.99	,000 - ,500	,150 - ,300	- ,400
5.00+	,100 - ,500	,900 - ,200	,200 - ,500

Fair Color: vstbG 3/5, 4/4, 7/4; bG 3/4, 4/3, 7/3; vslbG 3/4, 6/3, 7/3, 7/4; G 3/5, 4/4, 5/3, 6/4

cts	VVS	VS/SI	SI/I
<0.25	-	-	-
0.25-0.99	-	-	-
1.00-1.99	-	-	-
2.00-4.99	- ,500	-	-
5.00+	- ,000	- ,400	-

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Enstatite Value

Accompanying value information:

Enstatite Value, Price, and Jewelry Information

Faceted	All sizes
	to /ct

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Epidote Value

Accompanying value information:

Epidote Value, Price, and Jewelry Information

Faceted	All sizes
	to /ct

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Fluorite Value

Accompanying value information:

Fluorite Value, Price, and Jewelry Information

Faceted	All sizes
	$.50 to /ct

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Garnet Value

Accompanying value information:

Spessartite Garnet Value, Price, and Jewelry Information

Demantoid Garnet Value, Price, and Jewelry Information

Andradite Garnet Value, Price, and Jewelry Information

Mandarin Garnet Value, Price, and Jewelry Information

Tsavorite Garnet Value, Price, and Jewelry Information

Malaya Garnet Buying Guide

Red and More: Choosing Garnet Engagement Ring Stones

Almandine Garnet Value, Price, and Jewelry Information

Hessonite Garnet Value, Price, and Jewelry Information

Grossular Garnet Value, Price, and Jewelry Information

Uvarovite Garnet Value, Price, and Jewelry Information

Demantoid Garnet Buying Guide

Garnet Buying Guide

Malaya or Malaia Garnet Value, Price, and Jewelry Information

Mali Garnet Value, Price, and Jewelry Information

Garnet Value, Price, and Jewelry Information

Almandine

Top Color: oR, R, PR, rP 6/4

Almandine	All sizes
	to /ct

Almandine/Pyrope Blend ("Mozambique")

Red-Brown Colors

"Mozambique"	All sizes
	to /ct

Rhodolite (Almandine/Pyrope Blend)

Fine Color: rP, PR 6/5

Rhodolite	.5 to 1 carat	1 to 10 carats	10 carats plus
Faceted	to /ct	to /ct	to /ct
Cabochons	to /ct	to /ct	to /ct

Andradite

Fine Color: G 5/4

Andradite	All sizes
	to /ct

Demantoid

Demantoid	to 1 carat	1 to 3 carats
	to ,200/ct	to ,000/ct

Grossular

Grossular	.5 to 1 carat	1 to 5 carats	5 carats plus
Mint Green (Merelani)	to /ct	to /ct	to /ct
Yellow/Orange	to /ct	to /ct	to /ct
Yellow/Green	to /ct	to /ct	to /ct
Other colors	/ct	/ct to /ct

Hessonite

Fine Color: yO 4/5

Hessonite Garnet	All sizes
	to /ct

Tsavorite

Fine Color: G 6/5

Tsavorite	.5 to 1 carat	1 to 2 carats	2 carats plus
Faceted	to /ct	to ,500/ct	to ,000/ct

Mali Garnets (Andradite/Grossular Blend)

Mali Garnet	All sizes
	to /ct

Malaya (Malaia) Garnets

Malaya Garnet	.5 to 1 carat	1 to 5 carats	5 carats plus
	to /ct	to /ct	to /ct

Pyrope

Fine Color: R 6/5

Pyrope	1 carat plus
	/ct

Chrome Pyrope

Chrome Pyrope	All sizes
	to /ct

Spessartite

Spessartite Reds	.5 to 3 carats	3 to 6 carats
Little 3 Mine	to ,000/ct	to ,000/ct
African	to /ct	to /ct
Darker reds	to /ct

Mandarin

Fine Color: O 4/5

Mandarin Orange	All sizes
	to ,200/ct

Uvarovite

Uvarovite	10 carats plus
Druzy	to /ct

Star Garnet

Star Garnet	All sizes
6 ray star	to /ct
4 ray star	to /ct

Color Change

Color Change	.5 to 1 carat	1 to 6 carats
Africa	to ,500/ct	to ,000/ct
US	to /ct	to /ct

Cabochons

Cabochons	All Sizes
Common red to purple	to /ct

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Gold In Quartz Value

Accompanying value information:

Quartz Value, Price, and Jewelry Information

Cabochons	All sizes
	to /ct.

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Iolite Value

Accompanying value information:

Iolite Buying Guide

Iolite Value, Price, and Jewelry Information

Top Color: slvB 5/4

Faceted	Under 1 carat	1 to 3 carats	3 carats plus
	to /ct	to /ct	to /ct

Colorless	All sizes
	to /ct

Cabochons	Under 1 carat	1 carat plus
	to /ct	to /ct

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Kunzite Value

Accompanying value information:

Kunzite Buying Guide

Spodumene Value, Price, and Jewelry Information

Faceted	1 to 10 carats	10 carats plus
	to /ct	to /ct

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Lapis Lazuli Value

Accompanying value information:

Lapis Lazuli Buying Guide

Lapis Lazuli Value, Price, and Jewelry Information

Cabochons	All sizes
	to /ct

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Malachite Value

Accompanying value information:

Malachite Value, Price, and Jewelry Information

Cabochons	All sizes
	to /ct

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Moissanite Value

Accompanying value information:

Moissanite vs Diamond: Beauty, Durability, and Price

Properties of Diamond Simulants

Faceted	.5 to 1 carat	over 1 carat
Colorless	to /ct	to /ct
Green	to /ct	to /ct

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Moldavite Value

Accompanying value information:

Moldavite Value, Price, and Jewelry Information

Faceted	All sizes
	to /ct

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Moonstone Value

Accompanying value information:

Moonstone Buying Guide

Moonstone Value, Price, and Jewelry Information

Rainbow Moonstone (Peristerite)	.5 to .99 carats	1 to 7 carats
Cabochons	to /ct	to /ct

Labradorite	10 to 30 carats
Cabochons	to /ct

White, including cat's eyes	All sizes
	to /ct

White – Adularescent	All sizes
	to /ct

Other Colors	All sizes
	to /ct

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Opal Value

Accompanying value information:

An Interview with Opal Expert Joel Ragan

Opal Treatments: How to Detect Treated Opals

Opal Simulants: How to Spot Imitation Opal

Synthetic Opal Types

Eight Opal Types Explained

An Incredible Union of Colors: Choosing Opal Engagement Ring Stones

Opal Value, Price, and Jewelry Information

Opal Buying Guide

Black Opal, tone N1 to N4

Carat Weight	Below commercial	Commercial	Good	Fine	Extra fine
1 to 5	- /ct	- /ct	- ,400/ct	,400 - ,000/ct	,000 - ,000/ct
5 to 10/ct	- /ct	- /ct	- ,400/ct	,400 - ,000/ct	,000 - ,000/ct
10 +	- /ct	- /ct	- ,400/ct	,400 - ,400/ct	,400 - ,000/ct

Dark Opal, tone N5 to N6

Carat Weight	Below commercial	Commercial	Good	Fine	Extra fine
1 to 5	- /ct	- /ct	- ,200/ct	,200 - ,000/ct	,000 - ,000/ct
5 to 10/ct	- /ct	- /ct	- ,200/ct	,200 - ,000/ct	,000 - ,000/ct
10 +	- /ct	- /ct	- ,200/ct	,200 - ,600/ct	,600 - ,400/ct

Light Opal, tone N7 to N9

Body Tone	Below commercial	Commercial	Good	Fine	Extra fine
N7	- /ct	- /ct	- /ct	- ,000/ct	,000 - ,400/ct
N8	- /ct	- /ct	- /ct	- /ct	- ,200/ct
N9	- /ct	-	- /ct	- /ct	- ,000/ct

Crystal Opal

Carat Weight	Below commercial	Commercial	Good	Fine	Extra fine
1 to 5	- /ct	- /ct	- /ct	- ,000/ct	,000 - ,000/ct
5 to 10/ct	- /ct	- /ct	- /ct	- ,000/ct	,000 - ,400/ct
10 +	- /ct	- /ct	- /ct	- ,000/ct	,000 - ,000/ct

Boulder and Matrix Opal

Carat Weight	Below commercial	Commercial	Good	Fine	Extra fine
1 to 5	- /ct	- /ct	- /ct	- /ct	- ,000/ct
5 to 10/ct	- /ct	- /ct	- /ct	- ,100/ct	,100 - ,000/ct
10 to 15	- /ct	- ,20/ct	- /ct	- ,500/ct	,500 - ,000/ct
15 +	- /ct	- /ct	- /ct	- ,000/ct	,000 - ,000/ct

Composite Opals

Doublets prices are usually 15% to 35% of the value of similar looking natural, (solid,) gem. However, they occasionally run as high as 50% of a natural opal if they are of exceptional quality. Triplets are only about 1% of the value of an equivalent natural and peak at .

Other Opal Types

Contra Luz	All sizes
	to /ct

Fire Opals, faceted	.4 to 1 carat	1 to 5 carats	5 carats plus
	to /ct	to /ct	to /ct

Fire Opals, Cabochons	.4 to 2 carats	2 to 10 carats
Solid	to /ct	to /ct
In Matrix		to /ct

Pink Opal	All sizes
	/ct

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Oregon Sunstone Value

Accompanying value information:

Oregon Sunstone Buying Guide

Oregon Sunstone Value, Price, and Jewelry Information

Schiller

• Color Intensity: Light, medium, deep
• Color Range: Clear, gold, peach, coral, orange, red, green
• Transparency: Translucent to Opaque

The price range is consistently between - per carat regardless of size or color.

Clear Hues

• Color Intensity: Light
• Color Range: Clear, gold, peach, coral, pink, red, green, blue
• Transparency: Transparent

Price Per Carat	Clear	Peach Pink	Light Blue Green
Up to 2.5 cts
2.5-5 cts			.
5-7 cts
7 cts

Mid-Deep Tones

• Color Intensity: Medium to deep
• Color Range: Strong Peach, orange, red, green, blue
• Transparency: Transparent

Price Per Carat	Med Red Orange	Red	Blue Green
Up to 2.5 cts
2.5-5 cts
5-7 cts
7 cts

Constellation, AKA Aventurescent

• Color Intensity: Medium to deep
• Color Range: Strong peach, orange, red, green, blue
• Transparency: Transparent

Price Per Carat	Mid to Deep Color Constellation
Up to 2.5 cts
2.5-5 cts
5-7 cts
7 cts

Two Tone (Dichroic)

• Color Intensity: Medium to deep
• Color Range: Strong peach, orange, red, green, blue
• Transparency: Transparent

Price Per Carat	Light Dichroic	Med Dichroic	Deep Dichroic
Up to 2.5 cts
2.5-5 cts
5-7 cts
7 cts

Classic Sunstone

• Color Intensity: Combination of light-medium or light-deep
• Color Range: Gold, peach, coral, pink, red, green, blue
• Transparency: Transparent

Note: There was a limited sampling of larger sized stones, which may affect pricing accuracy.

Price Per Carat	Light Classic Pink/Peach	Classic Mid to Deep Red	Classic Blue/Green
Up to 2.5 cts
2.5-5 cts
5-7 cts
7 cts

Mystique

• Color Intensity: Light, medium, deep
• Color Range: Gold, peach, coral, pink, red, green, blue
• Transparency: Transparent

Price Per Carat	Med-Deep Mystique
Up to 2.5 cts
2.5-5 cts	,226
5-7 cts
7 cts

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Pearls

Accompanying value information:

Saltwater Pearls Value, Price, and Jewelry Information

Appraising Pearls: How to Grade Pearls

Pearl Value, Price, and Jewelry Information

Pearl Buying Guide

Freshwater Pearls Value, Price, and Jewelry Information

Prices of pearls are based on several quality factors. The values provided in this guide are for round cultured pearls. Baroque pearls are about 25-35% the cost of round pearls. Natural pearls are extremely rare, and largely limited to auction and collector’s markets. These can be worth 10 to 20 times an equivalent Akoya cultured pearl.

Akoya Pearls with White Body Color

Accompanying value information:

Akoya Pearls: the Complete Guide

Matching Pair

Size (mm)	Top Luster	High Luster
6 - 6.5	-	-
6.5 - 7	-	-
7 - 7.5	-	-
7.5 - 8	- ,550	- ,100
8 - 8.5	- ,100	- ,500
8.5 - 9	- ,900	- ,800
9 - 9.5	,200 - ,000	- ,000

Single Pearl

Size (mm)	Top Luster	High Luster
6 - 6.5	-	-
6.5 - 7	-	-
7 - 7.50	-	-
7.5 - 8	-	-
8 - 8.5	-	-
8.5 - 9	- ,800	- ,260
9 - 9.5	- ,500	- ,250

Freshwater Pearls with White Body Color

Accompanying value information:

Freshwater Cultured Pearls

Freshwater Pearls Value, Price, and Jewelry Information

Matching Pair

Size (mm)	Top Luster	High Luster
6 - 7	-	-
7 - 8	-	-
8 - 9	-	-
9 - 10	-	-
10 - 11	-	-

Single Pearl

Size (mm)	Top Luster	High Luster
6 - 7	-	-
7 - 8	-	-
8 - 9	-	-
9 - 10	-	-
10 - 11	-	-

South Sea Pearls

Accompanying value information:

South Sea Pearls: the Complete Guide

Matching Pair

Size (mm)	High Luster, White	High Luster, Golden
8 - 9	- ,000	- ,450
9 - 10	,200 - ,000	- ,900
10 - 11	,800 - ,500	,800 - ,000
11 - 12	,300 - ,000	,200 - ,200
12 - 13	,000 - ,000	,000 - ,000
13 - 14	,300 - ,000	,000 - ,000

Single Pearl

Size (mm)	High Luster, White	High Luster, Golden
8 - 9	-	-
9 - 10	- ,350	- ,300
10 - 11	- ,925	- ,800
11 - 12	- ,600	- ,250
12 - 13	,350 - ,400	,350 - ,050
13 - 14	,385 - ,100	,800 - ,400

Tahitian Pearls with Black Body Color

Accompanying value information:

Tahitian Pearls: Beautiful Black Pearls

Matching Pair

Size (mm)	Top Luster	High Luster
8 - 9	- ,300	-
9 - 10	-	-
10 - 11	- ,650	- ,000
11 - 12	,150 - ,400	- ,250
12 - 13	,550 - ,350	- ,000

Single Pearl

Size (mm)	Top Luster	High Luster
8 - 9	-	-
9 - 10	-	-
10 - 11	-	-
11 - 12	- ,100	-
12 - 13	- ,500	-

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Peridot Value

Accompanying value information:

Peridot Buying Guide

Peridot Value, Price, and Jewelry Information

Top Color: yG 5/4

Faceted	.5 to 1 carat	1 to 3 carats	3 carats plus
Eye Clean	to /ct	to /ct	to /ct

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Phenakite Value

Accompanying value information:

Phenakite Value, Price, and Jewelry Information

Faceted	All sizes
	to /ct

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Quartz Value

Accompanying value information:

Rose Quartz Value, Price, and Jewelry Information

Rutilated Quartz Buying Guide

Crystalline Quartz Buying Guide

Quartz Color Treatments

Smoky Quartz Value, Price, and Jewelry Information

Quartz Value, Price, and Jewelry Information

Smoky Quartz	All sizes
Faceted	to /ct

Rose Quartz	All sizes
Faceted	to /ct

Rutilated & Tourmalinated Quartz	All sizes
Faceted	to /ct
Cabochons	/ct

Quartz with Lepidocrite	All sizes
Faceted or cabochon	to /ct

Star Quartz	All sizes
	to /ct

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Rhodochrosite Value

Accompanying value information:

Rhodochrosite Value, Price, and Jewelry Information

Faceted	All sizes
Colorado	to ,000/ct
African	to /ct

Cabochons	All sizes
Bulls eye	to /ct
Plain	to /ct

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Ruby Value

Accompanying value information:

An Interview with Ruby Expert Richard Hughes

Choosing a Ruby Engagement Ring Stone

Ruby and Sapphire Grading Tools

Ruby Buying Guide

Ruby Value, Price, and Jewelry Information

Ruby and Sapphire Origins

Burma Ruby - Unheated

Origin and lack of treatment should be certified. Prices for oval and cushion cuts. Add up to 20% or deduct to 10% for other cutting. Add 7% to 10% for rounds, pears, marquis. Add 15% to30% for emerald cuts.

Top Color: R 6/6

No trade data available. As of May 2015, the record price for a ruby is approximately 2 million per carat. ( million for a 25.59 carat Mogok "pigeon's blood" ruby).

Very Good Color: R 5/6, 7/5; slpR 5/6, 6/6, 7/5; stpR 6/6

cts	VVS	VS/SI	SI/I
0.50-0.99	,000 - ,000/ct	,500 - ,000/ct	,000 - ,000/ct
1.00-1.99	,000 - ,000/ct	,000 - ,000/ct	,000 - ,000/ct
2.00-2.99	- ,000/ct	,000 - ,000/ct	,000 - ,000/ct
3.00-4.99	,000 - ,000/ct	,000 - ,000/ct	,000 - ,000/ct
5.00+	,000 - ,000/ct	,000 - ,0000/ct	,000 - ,000/ct

Good Color: R 6/5; slpR 6/5; stpR 5/6

cts	VVS	VS/SI	SI/I
0.50-0.99	,500 - ,000/ct	,000 - ,000/ct	,600 - ,500/ct
1.00-1.99	,500 - ,000/ct	,500 - ,000/ct	,000 - ,000/ct
2.00-2.99	,000 - ,000/ct	,000 - ,000/ct	,000 - ,000/ct
3.00-4.99	,000 - ,000/ct	,000 - ,000/ct	,000 - ,000/ct
5.00+	,000 - ,000/ct	,000 - ,000/ct	,000 - ,000/ct

Fair Color: R 5/5, 6/4, 7/4; slpR 5/5, 6/4, 7/4

cts	VVS	VS/SI	SI/I
0.50-0.99	,400 - ,000/ct	,200 - ,250/ct	- ,750/ct
1.00-1.99	,800 - ,000/ct	,500 - ,000/ct	,000 - ,500/ct
2.00-2.99	,000 - ,000/ct	,000 - ,000/ct	,250 - ,500/ct
3.00-4.99	,000 - ,000/ct	,500 - ,000/ct	,500 - ,000/ct
5.00+	,000 - ,000/ct	,000 - ,000/ct	,500 - ,000/ct

Ruby - Heat Treated

Prices for oval and cushion cuts. Add up to 20% or deduct to 10% for other cutting. Add 7% to 10% for rounds, pears, marquis. Add 15% to30% for emerald cuts.

Top Color: R 6/6

No trade data available.

Very Good Color: R 5/6, 7/5; slpR 5/6, 6/6, 7/5; stpR 6/6

cts	VVS	VS/SI	SI/I
0.50-0.99	,500 - ,500/ct	,250 - ,000/ct	- ,000/ct
1.00-1.99	,000 - ,000/ct	,500 - ,000/ct	,500 - ,000/ct
2.00-2.99	,000 - ,000/ct	,000 - ,000/ct	,000 - ,000/ct
3.00-4.99	,000 - ,000/ct	,500 - ,000/ct	,500 - ,000/ct
5.00+	,000 - ,000/ct	,000 - ,000/ct	,000 - ,000/ct

Good Color: R 6/5; slpR 6/5; stpR 5/6

cts	VVS	VS/SI	SI/I
0.50-0.99	,500 - ,000/ct	,000 - ,000/ct	- ,000/ct
1.00-1.99	,000 - ,500/ct	,500 - ,000/ct	,500 - ,500/ct
2.00-2.99	,000 - ,000/ct	,000 - ,000/ct	,000 - ,000/ct
3.00-4.99	,000 - ,000/ct	,000 - ,000/ct	,000 - ,000/ct
5.00+	,000 - ,000/ct	,500 - ,000/ct	,000 - ,000/ct

Fair Color: R 5/5, 6/4, 7/4; slpR 5/5, 6/4, 7/4

cts	VVS	VS/SI	SI/I
0.50-0.99	- ,500/ct	- ,000/ct	- /ct
1.00-1.99	- ,000/ct	- ,500/ct	- ,200/ct
2.00-2.99	,500 - ,000/ct	,250 - ,000/ct	- ,000/ct
3.00-4.99	,500 - ,000/ct	,000 - ,500/ct	- ,500/ct
5.00+	,000 - ,500/ct	,500 - ,000/ct	,200 - ,000/ct

Additional Ruby Shapes and Types

Cabochons	.5 to 1 carat	over 3 carats
	to /ct	to ,500/ct

Star Ruby	.5 to 1 carat	Over 1 carat
Near top color	to ,500/ct	to ,000/ct

Indian Rubies	All sizes
	to .ct

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Sapphire Value

Accompanying value information:

An Interview with Sapphire Expert Jeffery Bergman

Appraising Blue Sapphires

Ruby and Sapphire Grading Tools

Sapphire Engagement Ring Guide: Something Blue

Sapphire Buying Guide

Why We Love Montana Sapphires and Yogo Sapphires

Sapphire Value, Price, and Jewelry Information

Ruby and Sapphire Origins

Kashmir Sapphire

Certified origin. Untreated material. Average brilliancy of 40 to 60%. Add to 20% or deduct to 10% for other cutting. Prices for ovals and cushions. Add 8% to 10% for rounds and pears. Add 10% to 20% for emeralds and marquis.

Top Grade: vB 5/6, 6/6. B 5/6, 6/6.

Top Grade	1 to 2 carats	2 to 3 carats	3 to 4 carats	4 carats plus
VVS	,000 to ,650/ct	,000 to ,000/ct	,000 to ,500/ct	to ,000/ct
VS/SI	,000 to ,000/ct	,000 to ,700/ct	,000 to ,000/ct	to ,000/ct
SI/I	,000 to ,000/ct	,000 to 24,600/ct	,000 to 27,600/ct	to ,000/ct

Very Good Grade: V 4/6, 5/6, 6/5. bV 5/6, 6/6; vB 5/5, 4/6, 6/5.

Very Good Grade	1 to 2 carats	2 to 3 carats	3 to 4 carats	4 carats plus
VVS	,000 to ,300/ct	,600 to ,400/ct	,000 to ,000/ct	to ,000/ct
VS/SI	,400 to ,100/ct	,000 to ,700/ct	,000 to ,000/ct	to ,500/ct
SI/I	,000 to ,300/ct	,000 to ,000/ct	,400 to ,600/ct	to ,500/ct

Good Grade: V 4/5, 5/4, 5/5, 6/4, 6/5, 7/5; bV 4/5, 4/6, 5/4, 5/5, 5/4, 4/5; vB 3/5, 4/4, 6/3, 7/5, 5/4, 4/5; B 3/5, 4/4, 6/3, 7/5, 6/4, 5/4, 4/5.

Good Grade	1 to 2 carats	2 to 3 carats	3 to 4 carats	4 carats plus
VVS	,600 to ,200/ct	,800 to ,700/ct	,000 to ,000/ct	to ,000/ct
VS/SI	,200 to ,600/ct	,800 to ,200/ct	,000 to ,000/ct	to ,000/ct
SI/I	,600 to ,400/ct	,000 to ,500/ct	,000 to ,000/ct	to ,900/ct

Fair Grade: V 3/4, 3/5, 4/4, 4/3, 5/3, 6/3, 7/4; bV 3/5, 4/4, 5/3, 6/3, 7/4, 7/5; vB 3/4, 4/3, 7/4, 6/2, 5/3; B 3/4, 4/3, 7/4 6/2, 5/2, 5/3.

Fair Grade	1 to 2 carats	2 to 3 carats	3 to 4 carats	4 carats plus
VVS	,400 to ,000/ct	,800 to ,200/ct	,000 to ,500/ct	to ,500/ct
VS/SI	,000 to ,700/ct	,200 to ,300/ct	,000 to ,000/ct	to ,000/ct
SI/I	,400 to ,500/ct	,800 to ,800/ct	,000 to ,500/ct	to ,700/ct

Other Blue Sapphires

Heat treated material. Average brilliancy of 40% to 60%. Add to 20% or deduct to 10% for other cutting. Prices for ovals and cushions. Add 8% to 10% for rounds and pears. Add 10% to 20% for emeralds and marquis. Note: If certified Burmese and untreated, add 50%, except fair or lower grades. Typically, mid-quality untreated blue sapphire will sell for 20-30% more than a treated stone of the same quality. Top-quality unheated stones could get a premium of 50% or higher, especially if they're large.

Top Grade: vB 5/6, 6/6; B 5/6, 6/6.

Top Grade	1 to 2 carats	2 to 3 carats	3 to 4 carats	4 carats plus
VVS	,000 to ,500/ct	,800 to ,100/ct	,600 to ,300/ct	to ,500/ct
VS/SI	,600 to ,900/ct	,200 to ,200/ct	,000 to ,400/ct	to ,100/ct
SI/I	,400 to ,300/ct	,800 to ,600/ct	,200 to ,200/ct	to ,000/ct

Very Good Grade: V 4/6, 5/5, 6/6; bV 5/6, 6/7; vB 5/5, 4/6, 6/5; B 4/6, 5/5, 6/5; vslgB 4/6, 5/6, 6/6.

Very Good Grade	.5 to .75 carat	.75 to 1 carat	1 to 2 carats	2 carats plus
VVS	to ,275/ct	to ,500/ct	,600 to ,600/ct	to ,100/ct
VS/SI	to ,110/ct	to ,245/ct	,400 to ,700/ct	to ,350/ct
SI/I	to /ct	to ,050/ct	,200 to ,550/ct	to ,000/ct

Good Grade: V 4/5, 5/4, 5/5, 6/4, 6/5, 7/5; bV 4/5, 4/6, 5/4, 5/5, 6/4, 6/5; vB 3/5, 4/4, 6/3, 7/5, 5/4, 4/5; B 3/5, 4/4, 6/3, 7/5, 6/4, 6/4, 5/4, 4/5; vslgB 7/5, 5/4, 6/4, 4/5, 6/5, 5/5; gB 4/5, 5/5, 6/5.

Good Grade	.5 to .75 carat	.75 to 1 carat	1 to 2 carats	2 carats plus
VVS	to /ct	to ,125/ct	,400 to ,550/ct	to ,300/ct
VS/SI	to /ct	to /ct	,200 to ,100/ct	to ,700/ct
SI/I	to /ct	to /ct	to ,650/ct	to ,350/ct

Fair Grade: V 3/4, 3/5, 4/3, 4/4, 5/3, 6/3, 7/4; bV 3/5, 4/4, 5/3, 6/3, 7/4, 7/5; vB 3/4, 4/3, 6/2, 7/4, 5/3; B 3/4, 4/3, 7/4, 6/2, 5/2, 5/3; vslgB 3/4, 3/5, 4/3, 4/4, 5/3, 6/3, 7/4; gB 3/5, 4/4, 5/3, 5/4, 6/3, 6/4, 7/4; vstgB 4/4, 5/4, 6/4.

Fair Grade	.5 to .75 carat	.75 to 1 carat	1 to 2 carats	2 carats plus
VVS	to /ct	to /ct	to ,350/ct	to ,800/ct
VS/SI	to /ct	to /ct	to ,125/ct	to ,600/ct
SI/I	to /ct	to /ct	to ,020/ct	to ,850/ct

Fancy Sapphires

Average brilliancy of 30% to 40%. Add to 20% or deduct to 10% for other cutting. Prices for ovals and cushions. Add 7% to 10% for rounds, pears and marquis. Add 15% to 30% for emerald cuts.

Pink Sapphire

Top Color: stpR 3/6, 4/6; RP 4/6; rP 4/6

No trade data available

Very Good Color: slpR 4/6; stpR 4/5; RP 3/5, 4/4, 4/5; rP 3/5, 4/4, 4/5; P 4/5.

Very Good Color	.5 to .75 carat	.75 to 1 carat	1 to 2 carats	2 carats plus
VVS	to /ct	to ,050/ct	,800 to ,300/ct	to ,500/ct
VS/SI	to /ct	to /ct	,400 to ,700/ct	to ,400/ct
SI/I	to /ct	to /ct	,100 to ,250/ct	to ,950/ct

Good Color: slpR 3/5, 4/4, 4/5; stpR 3/4, 3/5, 4/4; RP 3/4, 4/3; rP 3/4, 4/3; P 3/4, 4/4.

Good Color	.5 to .75 carat	.75 to 1 carat	1 to 2 carats	2 carats plus
VVS	to /ct	to /ct	,000 to ,100/ct	to ,800/ct
VS/SI	to /ct	to /ct	to ,800/ct	to ,500/ct
SI/I	to /ct	to /ct	to ,350/ct	to ,500/ct

Fair Color: slpR 3/3, 4/3; stpR 3/4, 4/3; RP 2/3, 3/3; rP 2/3, 3/3; P 3/, 4/3.

Fair Color	.75 to 1 carat	1 to 2 carats	2 carats plus
VVS	to /ct	to /ct	to ,050/ct
VS/SI	to /ct	to /ct	to /ct
SI/I	to /ct	to /ct	to /ct

Yellow Sapphire

Top Color: Y 3/5; oY 3/5. Very Good Color: Y 3/4; oY 3/4. Good Color: Y 3/3, 4/4; oY 3/3, 4/4. Fair Color: Y 2/3, 4/3; oY 2/3, 4/3.

Yellow Sapphire	to 2 carats	2 carats plus
Top Color	to /ct	to ,625/ct
Very Good Color	to /ct	to ,350/ct
Good Color	to /ct	to /ct
Fair Color	to /ct	to /ct

Green Sapphire

Top Color: vslbG 6/3, bG 6/3, G 6/3. Very Good Color: BG 6/3, vstbG 6/2, 5/3, 6/2; bG 4/3, 5/3, 6/3; vslbG 4/3, 5/3, 6/2; G 5/3, 7/3; slyG 5/3, 6/3; yG 6/3. Good Color: BG 4/3, 5/3, 6/2; vstbG 4/3, 5/3, 7/3; bG 4/2, 5/2, 7/3, G 5/2,6/2; slyG 5/2, 6/2, 7/3; yG 5/3, 6/2, 7/3; styG 5/3, 6/3; styG 5/3, 6/3. Fair Color: BG 4/2, 5/2; vstbG 4/2, 7/2; bG 3/2, 7/2; vslbG 7/2; G 4/2, 7/2; slyG 4/2, 7/2; yG 5/2, 7/3; styG 5/2, 6/2.

Green Sapphire	to 1 carat	1 carat plus
Top Color	to /ct	to /ct
Very Good Color	to /ct	to /ct
Good Color	to /ct	to /ct
Fair Color	to /ct	to /ct

Purple Sapphire

Top Color: RP 6/6, 5/6; rP 6/6; P 6/6. Very Good Color: stpR 5/5, 6/5; RP 5/5, 6/5, 7/5; rP 5/6, 6/5; P 5/6, 6/5; bP 5/6, 6/5. Good Color: slpR 5/3, 6/3; stpR 5/4, 6/4, 7/4; RP 5/4, 6/3, 6/4, 7/4; rP 5/4, 5/5, 6/4, 7/5; P 5/4, 5/5, 6/4, 7/5; bP 4/5, 4/6, 5/5. Fair Color: .

Purple Sapphire	to 2 carats	2 carats plus
Top Color	to /ct	to ,840/ct
Very Good Color	to /ct	to ,470/ct
Good Color	to /ct	to ,470/ct
Fair Color	to /ct	to ,200/ct

Other Sapphires

White Sapphire	.5 to 3 carats	3 to 5 carats	5 to 15 carats
	to /ct	to /ct	to /ct

Color Change Sapphire	.5 to 1 carat	1 to 7 carats
	to ,000/ct	to ,000/ct

Blue Cabochons	.5 to 1 carat	1 to 7 carats
	to /ct	to /ct

Star Sapphire	.5 to 1 carat	1 to 5 carats
Blue	to /ct	to ,200/ct
Fancy Colors	to /ct	to /ct
Black	to /ct	to /ct

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Sapphirine Value

Accompanying value information:

Sapphirine Value, Price, and Jewelry Information

Faceted	.5 to 1 carat	1 to 5 carats
	to /ct	to ,000/ct

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Scapolite Value

Accompanying value information:

Scapolite Value, Price, and Jewelry Information

Gold	1 to 3 carats	3 carats plus
Faceted	to /ct	to /ct

Purple	.5 to 1 carat	1 carat plus
Faceted	to /ct	to /ct

Colorless	1 to 10 carats	10 carats plus
Faceted	to /ct	to /ct

Cat’s Eye	1 to 10 carats
	to /ct

Star	1 carat plus
	to /ct

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Sphalerite Value

Accompanying value information:

Sphalerite Buying Guide

Sphalerite Value, Price, and Jewelry Information

Faceted	1 carat plus
	to /ct

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Spinel Value

Accompanying value information:

Spinel Buying Guide

Spinel Value, Price, and Jewelry Information

Does Synthetic Spinel Exist? What is it?

Fine Color Blue: B 5/5

Blue	.5 to 2 carats	2 to 4 carats	4 carats plus
Faceted	to ,250/ct	to ,500/ct	,200 to ,500/ct

Fine Color Red: R, slpR 5/5

Red	.2 to 1 carat	1 to 5 carats
Faceted	to ,000/ct	to ,000/ct

Pink	.5 to 1 carats	1 to 3 carats	3 carats plus
Faceted	to ,800/ct	to ,000/ct	to ,500

Fine Color Purple: P 5/5: P, rP, bP, V 5/4

Purple	.5 to 1 carats	1 to 3 carats	3 carats plus
Faceted	to /ct	to ,800/ct	to ,000/ct

Fine Color Orange: O, rO 5/5

Other Colors	.5 to 1 carats	1 to 5 carats	5 carats plus
Faceted	to /ct	to ,000/ct	to ,000/ct

Star Spinel	All sizes
	to /ct

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Sugilite Value

Accompanying value information:

Sugilite Value, Price, and Jewelry Information

Faceted	All sizes
	to /ct

Cabochons	All sizes
	to /ct

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Sunstone Value

Accompanying value information:

Sunstone Value, Price, and Jewelry Information

Red, Green & Bicolored	.10 to .99 carats	1 to 100 carats
SI to clean	to ,500/ct	to ,000/ct

Peach	.5 to 20 carats
SI to clean	to /ct.

Schiller	1 carat plus
SI to clean	to /ct

Yellow	1 carat plus
SI to clean	to /ct

Cabochons	All sizes
Red	to /ct
Schiller	to /ct

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Tanzanite Value

Accompanying value information:

Tanzanite (Zoisite) Value, Price, and Jewelry Information

Tanzanite Buying Guide

Top Color: vB 6/5

Faceted	.5 to 1 carat	1 to 3 carats	5 carats plus
SI to Clean	to /ct	to ,200/ct	to ,500/ct

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Titanite Value

Accompanying value information:

Sphene (Titanite) Value, Price, and Jewelry Information

Faceted	.5 to 1 carats	1 to 10 carats	10 to 20 carats
	to /ct	to /ct	to /ct

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Topaz Value

Accompanying value information:

Topaz Buying Guide

Topaz Value, Price, and Jewelry Information

Why are Topaz and Citrine Gemstones Misidentified?

Top Color: oR, R 5/5

Imperial	.5 to 1 carat	1 to 3 carats	3 carats plus
	- /ct	to ,000/ct	to ,000/ct

Pink	.5 to 3 carat	3 carats plus
	to /ct	to ,000/ct

Top Color: vslgB, gB 5/5

Blues & Colorless	.5 to 1 carat	1 carat plus
London Blue	to	to /ct
Swiss Blue	to /ct	to /ct
Sky Blue	to /ct	to /ct
Colorless	to /ct	to /ct

Other Colors	All sizes
Faceted	to /ct

Cabochons	All sizes
Blue	to /ct

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Tourmaline Value

Accompanying value information:

Watermelon Tourmaline Buying Guide

Paraíba Tourmaline Buying Guide

Tourmaline Buying Guide

Chrome Tourmaline Buying Guide

Blue Tourmaline (Indicolite) Buying Guide

Green Tourmaline (Verdelite) Buying Guide

Rubellite Tourmaline Buying Guide

Paraíba Tourmaline Value, Price, and Jewelry Information

Tourmaline Value, Price, and Jewelry Information

Brazilian Cuprian (Paraíba) Tourmaline

Carat Weight	Low	Average	Good	Great	Superb
0.20-0.99	-,000 / ct	,000-,000?/ ct	,850-,000?/ ct	,000-,000?/ ct	,000-,500?/ ct
1.00-1.99	-,000 / ct	,000-,500?/ ct	,000-,000?/ ct	,000-,000?/ ct	,000-,000?/ ct
2.00-2.99	-,000 / ct	,500-,500?/ ct	,000-,000?/ ct	,000-,000?/ ct	,000+?/ ct
3.00-4.99	,100-,500 / ct	,000-,000?/ ct	,000-,000?/ ct	,000-,000?/ ct	,000+?/ ct
5.00+	,000+?/ ct	,000+?/ ct	,000+?/ ct	,000+?/ ct	,000+?/ ct

African Cuprian (Paraíba) Tourmaline

Carat Weight	Low	Average	Good	Great	Superb
0.20-0.99	-,000?/ ct	-,700?/ ct	,700-,500?/ ct	,000-,000?/ ct	,000-,500?/ ct
1.00-2.99	-,450 / ct	,400-,500 / ct	,900-,000?/ ct	,500-,000?/ ct	,000-,000?/ ct
3.00-4.99	-,800?/ ct	,550-,000?/ ct	,000-,500?/ ct	,000-,000?/ ct	,000-,000?/ ct
5.00-9.99	-,500?/ ct	,000-,500?/ ct	,500-,000?/ ct	,000-,500?/ ct	,000-,000?/ ct
10.00+	-,000?/ ct	,000-,500?/ ct	,500-,000?/ ct	,500-,500?/ ct	,000-,000?/ ct

Fine Color Blue: B 5/4

Indicolite	.4 to 2 carats	2 to 10 plus carats
Faceted	to /ct	to ,000/ct
Cabochons		to /ct

Fine Color Red: R, slpR 6/5

Rubellite	.5 to 1 carat	1 to 5 carats	5 carats plus
Reds	to /ct	to /ct	to /ct
Pinks	to /ct	to /ct	to /ct

Fine Color Green: vstbG, BG, vslbG 5/4

Chrome	.5 to 1 carat	1 to 5 carats
	to /ct	to ,000/ct

Other greens	.5 to 2 carats	2 to 5 carats	5 carats plus
	to /ct	to /ct	to ,500/ct

Other Tourmaline Types

Other Faceted Tourmaline	.5 to 1 carat	1 to 5 carats	5 plus carats
Fancy Colors: - Yellow - Orange (Top Color Orange: O 4/5) - Purple	to /ct	to /ct	to /ct
Watermelon	to	to /ct	to ,000/ct
Other Multicolor	to	to /ct	to /ct

Cat’s Eye	.5 to 1 carat	1 to 5 carats	5 plus carats
	to /ct	to /ct	to /ct

Other Cabochons	1 to 5 carats	5 plus carats
All colors	to /ct	to /ct

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Turquoise Value

Accompanying value information:

Turquoise Value, Price, and Jewelry Information

Turquoise Buying Guide

Cabochons	All Sizes
	to /ct

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Wulfenite Value

Accompanying value information:

Wulfenite Value, Price, and Jewelry Information

Faceted	.5 to 1.5 carat
	to /ct

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Zircon Value

Accompanying value information:

Zircon Value, Price, and Jewelry Information

Zircon Buying Guide

Fine Color Red: oR 5/4

Red	1 to 5 carats
	to /ct

Fine Color Blue: vstgB 5/4

Blue	1 to 5 carats	5 carats plus
	to /ct	to /ct

Fine Color Green: slyG 5/3

Green	1 to 5 carats	5 carats plus
	to /ct	to /ct

Fine Color Yellow to Orange: rO 4/4

Yellow to Orange	.5 to 1 carat	1 to 20 carats
Sold as "Gold"	/ct	to /ct

Other Colors	1 carat plus
	to /ct

Cat’s Eye	All sizes
Blue	/ct

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