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(97)
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Very Light Golden-Yellow Color-Change Diaspore Gem - 1ct Octagon Facet (ID: 439795)

Octagon / Emerald Cut Color-Change Diaspore

1ct
6.6 x 5 mm
$ 26.88
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Light Yellow Color-Change Diaspore Gem - 1.3ct Octagon Facet (ID: 397459)

Octagon / Emerald Cut Color-Change Diaspore

1.3ct
7.3 x 5.3 mm
$ 61.04
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Very Light Yellow Color-Change Diaspore Gem - 1ct Octagon Facet (ID: 439873)

Octagon / Emerald Cut Color-Change Diaspore

1ct
6.2 x 5.9 mm
$ 28.84
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Light Yellow Color-Change Diaspore Gem - 1ct Octagon Facet (ID: 440030)

Octagon / Emerald Cut Color-Change Diaspore

1ct
6.8 x 4.6 mm
$ 28.00
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Very Light Yellow Color-Change Diaspore Gem - 1.4ct Octagon Facet (ID: 396651)

Octagon / Emerald Cut Color-Change Diaspore

1.4ct
8.4 x 4.6 mm
$ 66.86
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Light Yellow Color-Change Diaspore Gem - 1.1ct Octagon Facet (ID: 411540)

Octagon / Emerald Cut Color-Change Diaspore

1.1ct
6.2 x 4.6 mm
$ 46.36
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Medium Yellow Color-Change Diaspore Gem - 1.1ct Octagon Facet (ID: 390275)

Octagon / Emerald Cut Color-Change Diaspore

1.1ct
7.6 x 4.2 mm
$ 53.91
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Very Light Yellow Color-Change Diaspore Gem - 1.1ct Octagon Facet (ID: 440405)

Octagon / Emerald Cut Color-Change Diaspore

1.1ct
5.6 x 4.9 mm
$ 29.96
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Light Yellow Color-Change Diaspore Gem - 1ct Octagon Facet (ID: 395665)

Octagon / Emerald Cut Color-Change Diaspore

1ct
9.2 x 4.3 mm
$ 46.26
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Pale Yellow Color-Change Diaspore Gem - 1ct Octagon Facet (ID: 422893)

Octagon / Emerald Cut Color-Change Diaspore

1ct
7.3 x 4.8 mm
$ 28.18
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Light Yellow Color-Change Diaspore Gem - 1.2ct Octagon Facet (ID: 411357)

Octagon / Emerald Cut Color-Change Diaspore

1.2ct
6.8 x 4.5 mm
$ 49.65
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Very Pale Yellow Color-Change Diaspore Gem - 1ct Octagon Facet (ID: 439868)

Octagon / Emerald Cut Color-Change Diaspore

1ct
6.2 x 5.9 mm
$ 29.12
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Light Yellow Color-Change Diaspore Gem - 1ct Octagon Facet (ID: 395666)

Octagon / Emerald Cut Color-Change Diaspore

1ct
6.7 x 4.7 mm
$ 48.17
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Light Yellow Color-Change Diaspore Gem - 1.1ct Octagon Facet (ID: 397182)

Octagon / Emerald Cut Color-Change Diaspore

1.1ct
6.3 x 5 mm
$ 53.01
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Brownish Yellow Color-Change Diaspore Gem - 1.1ct Octagon Facet (ID: 397013)

Octagon / Emerald Cut Color-Change Diaspore

1.1ct
7 x 4.7 mm
$ 50.15
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Light Yellow Color-Change Diaspore Gem - 1.4ct Octagon Facet (ID: 397192)

Octagon / Emerald Cut Color-Change Diaspore

1.4ct
7.9 x 4.9 mm
$ 65.43
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Very Light Yellow Color-Change Diaspore Gem - 1.2ct Octagon Facet (ID: 396836)

Octagon / Emerald Cut Color-Change Diaspore

1.2ct
7.6 x 5.2 mm
$ 57.31
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Very Light Golden-Yellow Color-Change Diaspore Gem - 1ct Octagon Facet (ID: 439736)

Octagon / Emerald Cut Color-Change Diaspore

1ct
6.6 x 5.2 mm
$ 28.00
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Yellow Green Color-Change Diaspore Gem - 1.2ct Octagon Facet (ID: 397023)

Octagon / Emerald Cut Color-Change Diaspore

1.2ct
10.1 x 4.2 mm
$ 55.88
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Light Yellow Color-Change Diaspore Gem - 1.1ct Octagon Facet (ID: 440109)

Octagon / Emerald Cut Color-Change Diaspore

1.1ct
5.8 x 5 mm
$ 30.52
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Very Pale Yellow Color-Change Diaspore Gem - 1ct Octagon Facet (ID: 439876)

Octagon / Emerald Cut Color-Change Diaspore

1ct
6.7 x 4.4 mm
$ 27.44
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1 2 3 4 5

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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
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  • Baguette Checkerboard
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  • Ball Facet
  • Baroque
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  • Carved Octagon
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  • Carved Pear Cabochon
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  • 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
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  • Drilled Square Rondelle Slice
  • Fancy Bicone
  • Fancy Cabochon
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  • Fancy Carved Oval
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  • Fancy Carved Round
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  • Fancy Carving
  • Fancy Concave Cut
  • Fancy Crystal Cluster
  • Fancy Cut
  • Fancy Facet
  • Fancy Fantasy Carving
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  • Fancy-Cut
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  • 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 Buff-Top
  • Heart Cabochon
  • Heart Cabochon with Hole
  • Heart Checkerboard (double sided)
  • Heart Facet
  • Heart Rose-Cut
  • Hexagon Cut
  • Marquise Cabochon
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  • Marquise Checkerboard (double sided)
  • Marquise Concave Cut
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  • Marquise Mixed Cut
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  • Marquise Sugarloaf Cabochon
  • 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
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  • 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
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  • Pear Facet
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  • Pear Slice
  • Pencil
  • Pencil Cut
  • Princess-Cut
  • Rhomb Cabochon
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  • Round Buff-Top
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  • Shark Fin Cabochon
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  • Spherical
  • Square / Scissor Cut
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  • Star Facet
  • Tapered Baguette Cabochon
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  • Trapezoid Cabochon
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  • Triangle Cabochon
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  • Trillion Cabochon
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  • 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 (146)
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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  		• Andesine Labradorite
  		• 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
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  		• Cat's Eye Gemstones
  		• Cat's Eye Moonstone
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  		• Color Change Gemstones
  		• Color-Change Diaspore
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  		• Coral
    • D Back to Top
  		•  Demantoid Garnet
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    • E Back to Top
  		•  Emerald
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    • G Back to Top
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    • H Back to Top
  		•  Hawk's Eye
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  		• Hiddenite
  		• Howlite
  		• Hyalite Opal
    • I Back to Top
  		•  Idocrase
  		• Imperial Topaz
  		• Iolite
    • J Back to Top
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    • K Back to Top
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    • 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
  		• Onyx
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  		• Opal Doublet
  		• Opal in Matrix
    • P Back to Top
  		•  Pearl
  		• Peridot
  		• Pietersite
  		• Prehnite
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  		• 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
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  		• 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
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  		• Spinel
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  		• 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