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Multicolor Boulder Opal Gem - 15.7ct Fancy Cabochon (ID: 523667)

Fancy Multicolor Boulder Opal

15.7ct
21.5 x 12.9 mm
$ 78.60
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Multicolor Boulder Opal Gem - 10ct Fancy Cabochon (ID: 365252)

Fancy Multicolor Boulder Opal

10ct
15.2 x 12.1 mm
$ 70.28
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Multicolor Boulder Opal Gem - 13.2ct Fancy Cabochon (ID: 365224)

Fancy Multicolor Boulder Opal

13.2ct
14.4 x 14.1 mm
$ 92.47
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Multicolor Boulder Opal Gem - 10.2ct Fancy Cabochon (ID: 522641)

Fancy Multicolor Boulder Opal

10.2ct
31.2 x 7.6 mm
$ 51.20
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Multicolor Boulder Opal Gem - 7.4ct Fancy Cabochon (ID: 575201)

Fancy Multicolor Boulder Opal

7.4ct
17.1 x 12.5 mm
$ 22.29
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Multicolor Boulder Opal Gem - 17.6ct Fancy Cabochon (ID: 365230)

Fancy Multicolor Boulder Opal

17.6ct
19.4 x 13.3 mm
$ 122.85
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Multicolor Boulder Opal Gem - 11.9ct Fancy Cabochon (ID: 575168)

Fancy Multicolor Boulder Opal

11.9ct
29.6 x 9.9 mm
$ 35.67
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Multicolor Boulder Opal Gem - 12.4ct Fancy Cabochon (ID: 522127)

Fancy Multicolor Boulder Opal

12.4ct
29.7 x 12 mm
$ 61.90
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Multicolor Boulder Opal Gem - 23.9ct Fancy Cabochon (ID: 575222)

Fancy Multicolor Boulder Opal

23.9ct
25 x 14.7 mm
$ 71.67
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Multicolor Boulder Opal Gem - 10.8ct Fancy Cabochon (ID: 523719)

Fancy Multicolor Boulder Opal

10.8ct
23.3 x 13.3 mm
$ 53.95
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Multicolor Boulder Opal Gem - 30.9ct Fancy Cabochon (ID: 521754)

Fancy Multicolor Boulder Opal

30.9ct
25.4 x 20.1 mm
$ 154.70
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Multicolor Boulder Opal Gem - 9ct Fancy Cabochon (ID: 523717)

Fancy Multicolor Boulder Opal

9ct
18.8 x 13.2 mm
$ 45.20
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Multicolor Boulder Opal Gem - 25.7ct Fancy Cabochon (ID: 522987)

Fancy Multicolor Boulder Opal

25.7ct
30.5 x 20.4 mm
$ 128.45
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Multicolor Boulder Opal Gem - 50.3ct Fancy Cabochon (ID: 575228)

Fancy Multicolor Boulder Opal

50.3ct
39.4 x 19.7 mm
$ 151.02
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Multicolor Boulder Opal Gem - 35.2ct Fancy Cabochon (ID: 575223)

Fancy Multicolor Boulder Opal

35.2ct
30.4 x 18.8 mm
$ 105.54
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Multicolor Boulder Opal Gem - 10.4ct Fancy Cabochon (ID: 365249)

Fancy Multicolor Boulder Opal

10.4ct
19.5 x 12.6 mm
$ 72.80
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Multicolor Boulder Opal Gem - 21.8ct Fancy Cabochon (ID: 522174)

Fancy Multicolor Boulder Opal

21.8ct
26.8 x 20.2 mm
$ 109.10
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Multicolor Boulder Opal Gem - 16.2ct Fancy Cabochon (ID: 521770)

Fancy Multicolor Boulder Opal

16.2ct
20.9 x 17.7 mm
$ 81.15
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Multicolor Boulder Opal Gem - 16ct Fancy Cabochon (ID: 575171)

Fancy Multicolor Boulder Opal

16ct
20.6 x 15.5 mm
$ 48.00
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Multicolor Boulder Opal Gem - 20.8ct Fancy Cabochon (ID: 522410)

Fancy Multicolor Boulder Opal

20.8ct
32.3 x 16.8 mm
$ 104.00
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Multicolor Boulder Opal Gem - 13.5ct Fancy Cabochon (ID: 365223)

Fancy Multicolor Boulder Opal

13.5ct
26.5 x 11.8 mm
$ 94.64
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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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1099
More Shapes
  • Asscher Cut
  • Baguette / Scissor Cut
  • Baguette Cabochon
  • Baguette Checkerboard
  • Baguette Crystal Cluster
  • Baguette Facet
  • Baguette Rose-Cut
  • Baguette Step Cut
  • Baguette Sugarloaf Cabochon
  • Ball Facet
  • Baroque
  • Barrel
  • Barrel / Checkerboard
  • Barrel / Full-Round
  • Barrel / Scissor Cut
  • Barrel Cabochon
  • Barrel Rose Cut
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  • Briolette with Hole
  • Bullet Shape Checkerboard
  • Carved
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  • Carved Fancy
  • Carved Fish
  • Carved Fish with Hole
  • Carved Flower
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  • Carved Heart
  • Carved Heart Cabochon
  • Carved Leaf
  • Carved Marquise
  • Carved Marquise Cabochon
  • Carved Octagon
  • Carved Oval
  • Carved Oval Cabochon
  • Carved Pear
  • Carved Pear Cabochon
  • Carved Rhomb
  • Carved Rose
  • Carved Rose with Half Drilled Hole
  • Carved Round
  • Carved Round Bar
  • Carved Round Cabochon
  • Carved Sheep
  • Carved Shell
  • Carved Square
  • Carved Teardrop
  • Carved Trillion
  • Carved Turtle
  • Cushion Buff-Top
  • Cushion Cabochon
  • Cushion Carved Medusa Cameo
  • 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
  • Drilled Square Rondelle
  • Drilled Square Rondelle Slice
  • Fancy Bicone
  • Fancy Cabochon
  • Fancy Carved Cushion
  • Fancy Carved Oval
  • Fancy Carved Pear
  • Fancy Carved Round
  • Fancy Carved Trillion
  • Fancy Carving
  • Fancy Concave Cut
  • Fancy Crystal Cluster
  • Fancy Cut
  • Fancy Facet
  • Fancy Fantasy Carving
  • Fancy Slice
  • Fancy Star Facet
  • Fancy-Cut
  • Fantasy Carved Flower
  • Fantasy Carved Flower Cut
  • Fantasy Carved Leaf
  • 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
  • Marquise Cabochon
  • Marquise Checkerboard
  • Marquise Checkerboard (double sided)
  • Marquise Concave Cut
  • Marquise Facet
  • Marquise Mixed Cut
  • Marquise Slice
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  • Octagon / Scissor Cut
  • Octagon Buff-Top
  • Octagon Cabochon
  • Octagon Checkerboard
  • Octagon Concave Cut
  • Octagon Facet
  • Octagon Mixed-Cut
  • Octagon Step Cut
  • Oval Bar Cut
  • Oval Buff-Top
  • Oval Cabochon
  • Oval Cabochon with Hole
  • Oval Carved Cameo
  • Oval Checkerboard
  • Oval Checkerboard (double sided)
  • Oval Concave Cut
  • Oval Crystal Cluster
  • Oval Diamond-Cut
  • Oval Facet
  • Oval Fancy Facet
  • Oval Fantasy Concave Cut
  • Oval Mixed Cut
  • Oval Portuguese-Cut
  • Oval Rose-Cut
  • Oval Slice
  • Pear Cabochon
  • Pear Checkerboard
  • Pear Checkerboard with Hole
  • Pear Concave Cut
  • Pear Concave Fantasy Cut
  • Pear Crystal Cluster
  • Pear Double-Sided Checkerboard
  • Pear Facet
  • Pear Shape Sugarloaf Cabochon
  • Pear Slice
  • Pencil
  • Pencil Cut
  • Princess-Cut
  • Rhomb Cabochon
  • Rhomb Checkerboard
  • Rhomb Checkerboard (Double-Sided)
  • Rhomb Facet
  • Rondelle
  • Round Buff-Top
  • Round Cabochon
  • Round Carved Cameo
  • Round Checkerboard
  • Round Checkerboard (double sided)
  • Round Concave Cut
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  • Round Crystal Cluster
  • Round Drilled Checkerboard (Double Sided)
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  • Round Facet
  • Round Mixed-Cut
  • Round Petal Cut
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  • Shark Fin Cabochon
  • Shield Cabochon
  • Spherical
  • Square / Scissor Cut
  • Square Buff-Top
  • Square Cabochon
  • Square Checkerboard
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  • Square with Hole
  • Tapered Baguette Cabochon
  • Teardrop Cabochon
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  • Trapezoid Cabochon
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  • Triangle Cabochon
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  • Trillion Cabochon
  • Trillion Checkerboard
  • Trillion Concave Cut
  • Trillion Crystal Cluster
  • Trillion Facet
  • Trillion Rose-Cut
  • Trillion Shape Sugarloaf Cabochon
  • Undrilled Briolette Teardrop
Popular Gemstones
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All Gemstones (144)
A B C D E F G H I J K L M N O P Q R S T V Z
    A Back to Top
  		•  Actinolite Cat's Eye
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  		• Ametrine
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  		• Apatite
  		• Aquamarine
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    • B Back to Top
  		•  Beryl
  		• Black Opal
  		• Bloodstone
  		• Boulder Opal
    • C Back to Top
  		•  Calcite
  		• Carnelian
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  		• Cat's Eye Aquamarine
  		• Cat's Eye Augite
  		• Cat's Eye Gemstones
  		• Cat's Eye Moonstone
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  		• Chalcedony
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  		• Chocolate Opal
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  		• Coral
    • D Back to Top
  		•  Demantoid Garnet
  		• Dendritic Agate
  		• Diamond
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  		• Druzy Azurite
    • E Back to Top
  		•  Emerald
  		• Enstatite
    • F Back to Top
  		•  Fire Agate
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  		• Fossil Coral
    • G Back to Top
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  		• Grossularite Garnet
    • H Back to Top
  		•  Hawk's Eye
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  		• Hessonite Garnet
  		• Hiddenite
  		• Howlite
  		• Hyalite Opal
    • I Back to Top
  		•  Idocrase
  		• Imperial Topaz
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    • J Back to Top
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    • K Back to Top
  		•  Kornerupine
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  		• Kyanite
    • L Back to Top
  		•  Labradorite
  		• Lapis Lazuli
  		• Larimar
    • M Back to Top
  		•  Malachite
  		• Malaya Garnet
  		• Mali Garnet
  		• Maw-Sit-Sit
  		• 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
  		• Peridot
  		• 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
  		• Rutile Quartz
    • S Back to Top
  		•  Sapphire
  		• Scapolite
  		• Scolecite
  		• Seraphinite
  		• Serpentine
  		• 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
  		• Turquoise
    • V Back to Top
  		•  Variscite
    • Z Back to Top
  		•  Zircon
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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