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Buy Cushion Cut 12x10 mm Gems

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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (51): Cushion Cut 12x10 mm Gems Clear All
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Violet Blue Tanzanite Gem - 6.9ct Cushion-Cut (ID: 400905)

Cushion Blue Tanzanite

6.9ct
12.2 x 10 mm
$ 3,486.85
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Green to Pink Color-Change Diaspore Gem - 6.7ct Cushion-Cut (ID: 381560)

Cushion Multicolor Color-Change Diaspore

6.7ct
11.7 x 9.8 mm
$ 2,858.44
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Green Prehnite Gem - 5.6ct Cushion Checkerboard (ID: 365775)

Cushion Green Prehnite

5.6ct
11.9 x 10 mm
$ 28.27
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Violet Blue Tanzanite Gem - 8ct Cushion-Cut (ID: 389778)

Cushion Blue Tanzanite

8ct
12.3 x 10.4 mm
$ 4,109.22
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Blue Lapis Lazuli Gem - 5.6ct Cushion-Cut (ID: 504699)

Cushion Blue Lapis Lazuli

5.63 ct (total 11.25ctw)
11.9 x 10 mm
$ 18.00
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Blue Lapis Lazuli Gem - 5.1ct Cushion Cabochon (ID: 501988)

Cushion Blue Lapis Lazuli

5.1ct
11.9 x 10 mm
$ 7.71
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Blue Lapis Lazuli Gem - 5.2ct Cushion-Cut (ID: 504700)

Cushion Blue Lapis Lazuli

5.18 ct (total 10.36ctw)
12 x 9.9 mm
$ 16.58
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Blue Lapis Lazuli Gem - 5.1ct Cushion-Cut (ID: 504702)

Cushion Blue Lapis Lazuli

5.13 ct (total 10.26ctw)
12 x 10 mm
$ 16.42
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Black Spinel Gem - 7.3ct Cushion Rose-Cut (ID: 335830)

Cushion Black Spinel

7.28 ct (total 14.56ctw)
12 x 10.1 mm
$ 72.80
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Multicolor Green Malachite Gem - 8.3ct Cushion Shape Sugarloaf Cabochon (ID: 494269)

Cushion Green Malachite

8.3ct
11.6 x 10 mm
$ 9.06
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Black Spinel Gem - 7.3ct Cushion Rose-Cut (ID: 335829)

Cushion Black Spinel

7.25 ct (total 14.50ctw)
12 x 10.1 mm
$ 72.50
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Black Spinel Gem - 7.6ct Cushion Rose-Cut (ID: 335827)

Cushion Black Spinel

7.60 ct (total 15.19ctw)
12 x 10.1 mm
$ 58.94
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Black Spinel Gem - 7.3ct Cushion Rose-Cut (ID: 335825)

Cushion Black Spinel

7.25 ct (total 14.50ctw)
12.1 x 10.2 mm
$ 72.50
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Blue Lapis Lazuli Gem - 5.3ct Cushion-Cut (ID: 504710)

Cushion Blue Lapis Lazuli

5.3ct
11.9 x 10 mm
$ 8.43
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Black Spinel Gem - 7.5ct Cushion Rose-Cut (ID: 335828)

Cushion Black Spinel

7.51 ct (total 15.01ctw)
12 x 10.1 mm
$ 75.05
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Blue Lapis Lazuli Gem - 5ct Cushion-Cut (ID: 504701)

Cushion Blue Lapis Lazuli

5.03 ct (total 10.06ctw)
12 x 10 mm
$ 16.10
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Blue Lapis Lazuli Gem - 5.4ct Cushion-Cut (ID: 504752)

Cushion Blue Lapis Lazuli

5.4ct
12 x 10.1 mm
$ 8.66
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Blue Lapis Lazuli Gem - 5.1ct Cushion-Cut (ID: 504751)

Cushion Blue Lapis Lazuli

5.1ct
12.1 x 10 mm
$ 8.19
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Black Spinel Gem - 6.9ct Cushion Rose-Cut (ID: 335932)

Cushion Black Spinel

6.92 ct (total 13.83ctw)
12 x 10.1 mm
$ 69.15
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Blue Lapis Lazuli Gem - 6.4ct Cushion-Cut (ID: 504754)

Cushion Blue Lapis Lazuli

6.4ct
12.1 x 10.1 mm
$ 10.24
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Blue Lapis Lazuli Gem - 5.3ct Cushion-Cut (ID: 501775)

Cushion Blue Lapis Lazuli

5.25 ct (total 10.50ctw)
12 x 10 mm
$ 15.75
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1 2 3
Cushion Cut 12x10 mm Gems
Some people by gems by color or price, but for many, it is best to buy gems by size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated cushion shapes, facet cut and cabochon gems available now in 12 mm x 10 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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Posted By BO in January, 2019
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As Always never disappointed in any gemstone I purchase from this site. I have never had a problem. Thank-You Gemselect for offering such a comprehensive variety . I will continue to order from this site.
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Easy to find what i'm looking for on website, very clear, like photos
Posted By Lifter in January, 2019
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Better than what I expected. Beautifully cut gem!
Posted By in January, 2019
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Overall Rating -> 10 star ratings
Gem select is the most trustworthy web site for gems. What I see in the picture is exactly what I get. Size is indicated by carat weight, and not the picture size, as they are trying to give an up close view of the gem I am hoping to buy. It was so easy to find the stones I was looking for at a price I could afford.
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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