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Multicolor Boulder Opal Gem - 20.9ct Oval Cabochon (ID: 300454)

Oval Multicolor Boulder Opal

20.9ct
25.5 x 14.9 mm
$ 146.44
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Multicolor Boulder Opal Gem - 23.3ct Oval Cabochon (ID: 302900)

Oval Multicolor Boulder Opal

23.3ct
20.8 x 14 mm
$ 163.38
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Multicolor Boulder Opal Gem - 21ct Oval Cabochon (ID: 321920)

Oval Multicolor Boulder Opal

21ct
27.9 x 12.8 mm
$ 147.28
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Multicolor Boulder Opal Gem - 15.6ct Oval Cabochon (ID: 420671)

Oval Multicolor Boulder Opal

15.6ct
19.3 x 14.3 mm
$ 93.36
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Multicolor Boulder Opal Gem - 7.8ct Oval Cabochon (ID: 523730)

Oval Multicolor Boulder Opal

7.8ct
16 x 11.2 mm
$ 39.00
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Multicolor Boulder Opal Gem - 22.2ct Oval Cabochon (ID: 302926)

Oval Multicolor Boulder Opal

22.2ct
22.7 x 18.1 mm
$ 155.12
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Multicolor Boulder Opal Gem - 12.9ct Oval Cabochon (ID: 420744)

Oval Multicolor Boulder Opal

12.9ct
21 x 10 mm
$ 77.22
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Multicolor Boulder Opal Gem - 9.7ct Oval Cabochon (ID: 522638)

Oval Multicolor Boulder Opal

9.7ct
22.4 x 13.1 mm
$ 48.30
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Multicolor Boulder Opal Gem - 21.3ct Oval Cabochon (ID: 321921)

Oval Multicolor Boulder Opal

21.3ct
27.3 x 13.1 mm
$ 149.24
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Multicolor Boulder Opal Gem - 22.5ct Oval Cabochon (ID: 321845)

Oval Multicolor Boulder Opal

22.5ct
24.8 x 20 mm
$ 157.78
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Multicolor Boulder Opal Gem - 22.7ct Oval Cabochon (ID: 321842)

Oval Multicolor Boulder Opal

22.7ct
21.8 x 16.5 mm
$ 158.69
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Multicolor Boulder Opal Gem - 13.1ct Oval Cabochon (ID: 248000)

Oval Multicolor Boulder Opal

13.1ct
19.5 x 13.5 mm
$ 91.98
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Multicolor Boulder Opal Gem - 26.4ct Oval Cabochon (ID: 521759)

Oval Multicolor Boulder Opal

26.4ct
28.5 x 17.9 mm
$ 132.15
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Multicolor Boulder Opal Gem - 27.6ct Oval Cabochon (ID: 521769)

Oval Multicolor Boulder Opal

27.6ct
29.3 x 19.2 mm
$ 138.15
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Multicolor Boulder Opal Gem - 11.3ct Oval Cabochon (ID: 522959)

Oval Multicolor Boulder Opal

11.3ct
20.7 x 11.7 mm
$ 56.55
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GemSelect has the largest selection of precious gems and semi-precious gemstones. Over 50,000 gemstones available and over 120 different gemstone varieties in all of the important gemstone groups; and best of all, they are guaranteed to be 100% natural, mined-from-the-earth authentic gems. We disclose all treatments and do not use any stock photos! We individually photograph each and every item and all items are guaranteed available.

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More Shapes
  • Asscher Cut
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  • Baguette Checkerboard
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  • Baguette Facet
  • Baguette Rose-Cut
  • Baguette Step Cut
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  • Ball Facet
  • Baroque
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  • Cushion Buff-Top
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  • Cushion Checkerboard
  • Cushion Checkerboard (double sided)
  • Cushion Concave Fantasy Cut
  • Cushion Crystal Cluster
  • Cushion Mixed Cut
  • Cushion Rose-Cut
  • Cushion Shape Sugarloaf Cabochon
  • Cushion Sugarloaf Cabochon
  • Cushion-Cut
  • Diamond-Cut
  • Drilled Faceted Sphere
  • Drilled Sphere
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  • Drilled Square Rondelle Slice
  • Fancy Bicone
  • Fancy Cabochon
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  • Fancy Carving
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  • Fancy Cut
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  • Fantasy Carved Flower Cut
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  • Flower Carving
  • Flower-Cut
  • Half Heart Cabochon
  • Half Heart Facet
  • Half Moon Cabochon
  • Half Moon Facet-Cut
  • Half Moon Faceted
  • Half-Drilled Briolette
  • Half-Drilled Heart Facet
  • Half-Drilled Sphere
  • Heart Cabochon
  • Heart Checkerboard (double sided)
  • Heart Facet
  • Heart Rose-Cut
  • Hexagon Cut
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  • Marquise Concave Cut
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  • Octagon / Scissor Cut
  • Octagon Buff-Top
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  • Octagon Checkerboard
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  • Octagon Facet
  • Octagon Mixed-Cut
  • Octagon Step Cut
  • Oval Bar Cut
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  • Oval Fantasy Concave Cut
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  • Pear Cabochon
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  • Pear Concave Cut
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  • Pear Crystal Cluster
  • Pear Double-Sided Checkerboard
  • Pear Facet
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  • Pear Slice
  • Pencil
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  • Round Buff-Top
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  • Trillion Crystal Cluster
  • Trillion Facet
  • Trillion Rose-Cut
  • Trillion Shape Sugarloaf Cabochon
  • Undrilled Briolette Teardrop
Popular Gemstones
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All Gemstones (144)
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    A Back to Top
  		•  Actinolite Cat's Eye
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  		• Amethyst
  		• Ametrine
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  		• Apatite
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    • B Back to Top
  		•  Beryl
  		• Black Opal
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  		• Boulder Opal
    • C Back to Top
  		•  Calcite
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  		• Cat's Eye Aquamarine
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  		• Cat's Eye Gemstones
  		• Cat's Eye Moonstone
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  		• Chocolate Opal
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  		• Color Change Gemstones
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  		• Coral
    • D Back to Top
  		•  Demantoid Garnet
  		• Dendritic Agate
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    • E Back to Top
  		•  Emerald
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    • F Back to Top
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    • G Back to Top
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    • H Back to Top
  		•  Hawk's Eye
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  		• Hessonite Garnet
  		• Hiddenite
  		• Howlite
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    • I Back to Top
  		•  Idocrase
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    • J Back to Top
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    • L Back to Top
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  		• Larimar
    • M Back to Top
  		•  Malachite
  		• Malaya Garnet
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  		• Moonstone
  		• Morganite
  		• Moss Opal
  		• Mother of Pearl
  		• Mystic Topaz
    • N Back to Top
  		•  Nuummite
    • O Back to Top
  		•  Obsidian
  		• Opal
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  		• Opal in Matrix
    • P Back to Top
  		•  Pearl
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  		• Pietersite
  		• Prehnite
  		• Pyrite
  		• Pyrope Garnet
    • Q Back to Top
  		•  Quartz
  		• Quartz Cat's Eye
  		• Quartz With Marcasite
    • R Back to Top
  		•  Rainbow Moonstone
  		• Rainbow Pyrite
  		• Rhodochrosite
  		• Rhodolite Garnet
  		• Rose Quartz
  		• Rubellite Tourmaline
  		• Ruby
  		• Ruby in Fuchsite
  		• Ruby-Zoisite
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    • S Back to Top
  		•  Sapphire
  		• Scapolite
  		• Scolecite
  		• Seraphinite
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  		• Sillimanite
  		• Sillimanite Cat's Eye
  		• Smithsonite
  		• Smoky Quartz
  		• Snowflake Obsidian
  		• Sodalite
  		• Spectrolite
  		• Spessartite Garnet
  		• Sphalerite
  		• Sphene
  		• Spinel
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  		• Star Garnet
  		• Star Gemstones
  		• Star Lemon Quartz
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  		• Star Ruby
  		• Star Sapphire
  		• Star Sunstone
  		• Strawberry Quartz
  		• Sugilite
  		• Sunstone
    • T Back to Top
  		•  Tanzanite
  		• Tiger's Eye
  		• Tiger's Eye Matrix
  		• Topaz
  		• Tourmaline
  		• Tsavorite Garnet
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    • V Back to Top
  		•  Variscite
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart