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Buy Trillion Shape 12x12 mm Gems

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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (41): Trillion Shape 12x12 mm Gems Clear All
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Lemon Quartz Gem - 6ct Fancy Carved Trillion (ID: 500195)

Trillion Yellow Quartz

6ct
11.8 x 11.6 mm
$ 17.91
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Yellow Golden Citrine Gem - 5.4ct Trillion Facet (ID: 501307)

Trillion Yellow Citrine

5.4ct
12 x 11.9 mm
$ 32.46
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Yellow Golden Citrine Gem - 5.2ct Trillion Facet (ID: 501204)

Trillion Yellow Citrine

5.2ct
12.1 x 12 mm
$ 31.02
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Yellow Golden Citrine Gem - 5.6ct Trillion Facet (ID: 501196)

Trillion Yellow Citrine

5.6ct
12.2 x 12.2 mm
$ 33.84
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Yellow Golden Citrine Gem - 4.7ct Trillion Facet (ID: 501003)

Trillion Yellow Citrine

4.7ct
11.9 x 11.6 mm
$ 28.44
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Yellow Golden Citrine Gem - 4.8ct Trillion Facet (ID: 501312)

Trillion Yellow Citrine

4.8ct
12 x 11.9 mm
$ 28.74
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Yellow Golden Citrine Gem - 4.8ct Trillion Facet (ID: 498496)

Trillion Yellow Citrine

4.8ct
12.1 x 11.8 mm
$ 33.88
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Yellow Golden Citrine Gem - 4.7ct Trillion Facet (ID: 498481)

Trillion Yellow Citrine

4.7ct
12.1 x 12 mm
$ 32.55
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Yellow Golden Citrine Gem - 5.4ct Trillion Facet (ID: 501302)

Trillion Yellow Citrine

5.4ct
12.1 x 12 mm
$ 32.10
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Yellow Golden Citrine Gem - 5.6ct Trillion Facet (ID: 498559)

Trillion Yellow Citrine

5.6ct
12.1 x 12.1 mm
$ 39.20
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Yellow Golden Citrine Gem - 5.2ct Trillion Facet (ID: 501006)

Trillion Yellow Citrine

5.2ct
11.8 x 11.8 mm
$ 31.02
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Yellow Golden Citrine Gem - 4.7ct Trillion Facet (ID: 498480)

Trillion Yellow Citrine

4.7ct
12.1 x 12.1 mm
$ 32.55
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Yellow Golden Citrine Gem - 5ct Trillion Facet (ID: 501304)

Trillion Yellow Citrine

5ct
12 x 11.9 mm
$ 29.94
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Yellow Golden Citrine Gem - 5.8ct Trillion Facet (ID: 498493)

Trillion Yellow Citrine

5.8ct
12.1 x 12 mm
$ 40.81
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Yellow Golden Citrine Gem - 4.8ct Trillion Facet (ID: 501203)

Trillion Yellow Citrine

4.8ct
12 x 11.9 mm
$ 28.68
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Yellow Golden Citrine Gem - 5.2ct Trillion Facet (ID: 498487)

Trillion Yellow Citrine

5.2ct
12.2 x 12 mm
$ 36.33
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Yellow Golden Citrine Gem - 5.3ct Trillion Facet (ID: 498498)

Trillion Yellow Citrine

5.3ct
12.1 x 11.9 mm
$ 36.96
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Yellow Golden Citrine Gem - 4.5ct Trillion Facet (ID: 498561)

Trillion Yellow Citrine

4.5ct
12.2 x 12.1 mm
$ 31.78
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Yellow Golden Citrine Gem - 5.2ct Trillion Facet (ID: 498470)

Trillion Yellow Citrine

5.2ct
12.1 x 11.9 mm
$ 36.12
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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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Yellow Golden Citrine Gem - 4.7ct Trillion Facet (ID: 498560)

Trillion Yellow Citrine

4.7ct
12.1 x 12.1 mm
$ 33.04
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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.

Certified Customer Reviews
Overall Rating -> 9 star ratings
Easy to shop through gemselect and will look there for future purchases.
Posted By Childcapo in February, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
good value
Posted By Don in February, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
It was super easy to browse all the gemstones and find exactly what you wanted. The prices were great and the checkout process was smooth. Seems like a great site, will definitely come back to find more in the future.
Posted By JMWatch Guy in February, 2019
Source: Bizrate
Overall Rating -> 9 star ratings
Ive always been pleased with quality and truth of gems rating I am a gemmologist and really like the descriptions as well . i.e cut, colour and quality Sometimes Ill choose GemSelect rather than a local wholesaler because of my regard for their quality and truth
Posted By Mango in February, 2019
Source: Bizrate
Overall Rating -> 9 star ratings
I will continue to utilize gemselect in my business as a jeweler.
Posted By Julie in February, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
Very good selection, easy to navigate site and very reasonable prices. I look forward to receiving the gems and if they are everything they appeared to be I will be extremely happy. Definitely likely to purchase from this site again.
Posted By Anthony in January, 2019
Source: Bizrate
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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