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Buy Trillion Shape 12x12 mm Gems

(35)
Gem Type Weight Size Clarity Price Origin
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Dark Orange-Gold Citrine Gem - 4.7ct Trillion Facet (ID: 498480)

Trillion Golden Citrine

4.7ct
12.1 x 12.1 mm
$ 32.55
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Golden Citrine Gem - 5ct Trillion Facet (ID: 498500)

Trillion Golden Citrine

5ct
12 x 11.9 mm
$ 35.00
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Deep Golden Orange Citrine Gem - 4.7ct Trillion Facet (ID: 498481)

Trillion Golden Citrine

4.7ct
12.1 x 12 mm
$ 32.55
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Medium Gold Citrine Gem - 5.4ct Trillion Facet (ID: 501307)

Trillion Golden Citrine

5.4ct
12 x 11.9 mm
$ 32.46
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Golden Citrine Gem - 6.1ct Trillion Facet (ID: 501194)

Trillion Golden Citrine

6.1ct
12.1 x 12 mm
$ 36.78
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Golden Orange Citrine Gem - 4.7ct Trillion Facet (ID: 498560)

Trillion Golden Citrine

4.7ct
12.1 x 12.1 mm
$ 33.04
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Medium Gold Citrine Gem - 5.4ct Trillion Facet (ID: 501202)

Trillion Golden Citrine

5.4ct
12.1 x 12 mm
$ 32.46
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Medium Gold Citrine Gem - 4.8ct Trillion Facet (ID: 501312)

Trillion Golden Citrine

4.8ct
12 x 11.9 mm
$ 28.74
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Bright Gold Citrine Gem - 5.6ct Trillion Facet (ID: 503732)

Trillion Golden Citrine

5.6ct
12.2 x 12.2 mm
$ 39.06
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Bright Gold Citrine Gem - 5.2ct Trillion Facet (ID: 498472)

Trillion Golden Citrine

5.2ct
12.1 x 11.9 mm
$ 36.33
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17 pcs
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Medium-Light Purplish Violet Amethyst Gem - 4.7ct Trillion Facet (ID: 516113)

1 pc (avg. 4.71 ct) Violet Amethyst

12 x 11.9 mm
$ 32.99
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Medium Orange-Gold Citrine Gem - 4.8ct Trillion Facet (ID: 498496)

Trillion Golden Citrine

4.8ct
12.1 x 11.8 mm
$ 33.88
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Golden Citrine Gem - 5.2ct Trillion Facet (ID: 498470)

Trillion Golden Citrine

5.2ct
12.1 x 11.9 mm
$ 36.12
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Light Yellow Quartz Gem - 6.2ct Carved Trillion (ID: 517773)

Trillion Yellow Quartz

6.2ct
12.3 x 12.1 mm
$ 15.19
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Golden Citrine Gem - 5.2ct Trillion Facet (ID: 498469)

Trillion Golden Citrine

5.2ct
12.2 x 12.1 mm
$ 36.47
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Golden Citrine Gem - 5.3ct Trillion Facet (ID: 498498)

Trillion Golden Citrine

5.3ct
12.1 x 11.9 mm
$ 36.96
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Deep Gold Citrine Gem - 5.6ct Trillion Facet (ID: 498559)

Trillion Golden Citrine

5.6ct
12.1 x 12.1 mm
$ 39.20
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Golden Citrine Gem - 5.8ct Trillion Facet (ID: 501195)

Trillion Golden Citrine

5.8ct
12.2 x 12.1 mm
$ 34.62
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Golden Citrine Gem - 4.5ct Trillion Facet (ID: 498561)

Trillion Golden Citrine

4.5ct
12.2 x 12.1 mm
$ 31.78
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Dark Golden Citrine Gem - 5.2ct Trillion Facet (ID: 498487)

Trillion Golden Citrine

5.2ct
12.2 x 12 mm
$ 36.33
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Swiss Blue Topaz Gem - 5.9ct Trillion Concave Fantasy Cut (ID: 486095)

Trillion Blue Topaz

5.9ct
12.2 x 12.4 mm
$ 35.16
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1 2
Trillion Shape 12x12 mm Gems
Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated Trillion shapes, facet cut and cabochon gems available now in 12 mm x 12 mm size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not meant nor expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often around 0.3 mm or slightly higher even. This small variance can usually be accommodated for standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

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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
  • Baroque
  • Barrel
  • Barrel / Checkerboard
  • Barrel / Full-Round
  • Barrel / Scissor Cut
  • Barrel Cabochon
  • Barrel Rose Cut
  • Bear Carving with Hole
  • Bird Carving
  • Briolette with Hole
  • Carved Baguette
  • Carved Cameo
  • Carved Cushion
  • Carved Elephant
  • Carved Fancy
  • Carved Fish
  • Carved Fish with Hole
  • Carved Flower
  • Carved Fruit
  • Carved Half Heart
  • Carved Half Moon
  • Carved Heart
  • Carved Heart Cabochon
  • Carved Leaf
  • Carved Marquise
  • Carved Marquise Cabochon
  • Carved Octagon
  • Carved Oval
  • Carved Oval Cabochon
  • Carved Owl
  • Carved Pear
  • Carved Pear Cabochon
  • Carved Rhomb
  • Carved Rose
  • Carved Rose with Half Drilled Hole
  • Carved Round
  • 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 Slice
  • Drop / Pear
  • Fancy Cabochon
  • Fancy Carved Cushion
  • Fancy Carved Oval
  • Fancy Carved Pear
  • Fancy Carved Round
  • Fancy Carved Trillion
  • Fancy Carving
  • Fancy Crystal Cluster
  • Fancy Facet
  • Fancy Fantasy Carved Leaf
  • 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 Checkerboard Facet
  • Half-Drilled Sphere
  • Heart Cabochon
  • Heart Checkerboard (double sided)
  • Heart Facet
  • Heart Rose-Cut
  • Hexagon Cut
  • Marquise Buff-Top
  • Marquise Cabochon
  • Marquise Checkerboard
  • Marquise Checkerboard (double sided)
  • Marquise Crystal Cluster
  • Marquise Facet
  • Marquise Mixed Cut
  • Marquise Slice
  • Marquise Sugarloaf Cabochon
  • Octagon / Scissor Cut
  • Octagon Cabochon
  • Octagon Checkerboard
  • Octagon Facet
  • Octagon Step 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
  • Pentagon Facet
  • 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
  • Round Concave Fantasy Cut
  • Round Drilled Checkerboard (Double Sided)
  • Round Drilled Rondelle
  • Round Facet
  • Round Mixed Cut
  • Round Mixed-Cut
  • Round Petal Cut
  • Round Portuguese-Cut
  • Round Rose-Cut
  • Round Rose-Cut (double sided)
  • Round Slice
  • Shark Fin Cabochon
  • Shark Fin Facet
  • Shield Cabochon
  • Shield Checkboard
  • Spherical
  • Square / Scissor Cut
  • Square Cabochon
  • Square Facet
  • Square Rose-Cut
  • Square Step-Cut
  • Square Sugarloaf Cabochon
  • Square with Hole
  • Tapered Baguette Cabochon
  • Teardrop Cabochon
  • Trapezoid
  • Trapezoid Cabochon
  • Trapezoid Checkerboard
  • Triangle
  • Triangle Cabochon
  • Trillion Cabochon
  • Trillion Checkerboard
  • Trillion Concave Cut
  • Trillion Concave Fantasy 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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  		• Amethyst
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  		• Andesine Labradorite
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    • B Back to Top
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  		• Black Opal
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    • C Back to Top
  		•  Calcite
  		• Carnelian
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  		• Cat's Eye Gemstones
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  		• Chrysocolla
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  		• Citrine
  		• Color-Change Diaspore
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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
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    • I Back to Top
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    • M Back to Top
  		•  Malachite
  		• Malaya Garnet
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    • N Back to Top
  		•  Nuummite
    • O Back to Top
  		•  Obsidian
  		• Opal
  		• Opal Doublet
  		• Opal in Matrix
    • P Back to Top
  		•  Pearl
  		• Peridot
  		• Pietersite
  		• Prehnite
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    • Q Back to Top
  		•  Quartz
  		• Quartz Cat's Eye
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    • R Back to Top
  		•  Rainbow Moonstone
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    • S Back to Top
  		•  Sapphire
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  		• Sillimanite Cat's Eye
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  		• Snowflake Obsidian
  		• Sodalite
  		• Spectrolite
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  		• Spinel
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  		• Star Lemon Quartz
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  		• Sugilite
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    • T Back to Top
  		•  Tanzanite
  		• Tiger's Eye
  		• Tiger's Eye Matrix
  		• Topaz
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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