Calibrated Trillion Cut Gemstones in Size 15x15 mm

Some people by gems by color or prize, 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 15 mm x 15 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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was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

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Gemstones A-Z

Buy Trillion Shape 15x15 mm Gems

1.12 ct Green Sphene, 6.7 x 5.3 mm Oval Cut From Sri Lanka

0.54 carat Orange Spessartite Garnet, Pear Shape loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 5.1 x 4.1 mm

24.05 ct Loose Fancy Moss Agate, 29.5 x 13.9 mm From India

0.21 ct Blue Apatite, 3.6 mm Round Cut From Madagascar

1.39 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 12.1 x 5.8 mm

0.9 ct Loose Pink Sapphire, 9 x 5.6 mm Odd Shaped From Madagascar

14.59 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 14.8 x 12.5 mm

2.07 ct Oval Cut Andalusite, 6 x 4.1 mm From Brazil

3.29 ct Loose Princess Cut Sapphire, 3.1 x 3.1 mm From Tanzania

5.35 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.2 x 4.2 mm

1.91 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 9.2 x 7.1 mm

4.61 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.2 mm

87.67 ct Multicolor Jasper, 38.4 x 31 mm Oval Cut From Indonesia

11.59 carat Pear Charoite, loose Certified Charoite from Russia, Natural Untreated Gem, 21.4 x 15.1 mm

0.35 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 4.1 x 4 mm

1.6 carat Oval Peridot, loose Certified from China, Natural Untreated Gems, 6.9 x 4.9 mm

3.25 ct Blue Kyanite, 8.1 x 6.2 mm Oval Cut From Nepal

10.33 ct Drilled Sphere Rutile Quartz, 11.4 mm From India

4.22 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 11.1 x 9.2 mm

7.09 carat Bi-color Ametrine, Emerald-Cut loose Ametrine from Brazil, Natural Untreated Gem, 14 x 10 mm

47.77 ct Druzy Citrine, 28.9 x 19.4 mm From Uruguay

1.23 ct Yellow Beryl, 8.1 x 7.9 mm Trillion Cut From Madagascar

0.73 ct Yellow Beryl, 6.9 x 6.9 mm Trillion Cut From Madagascar

3.06 ct Oval Prehnite, 8.6 x 6.3 mm From South Africa

6.04 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 10.1 x 8.2 mm

7.91 ct Green Jadeite, 12.3 mm Round Cut From Myanmar

5.38 carat White Topaz, Round loose Topaz from Brazil, Natural Untreated Gems, 8.7 mm

2.49 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 10.1 x 5.1 mm

5.41 carat Yellow Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 11.8 x 8.2 mm

3.67 ct Marquise Pietersite, 21.8 x 6.7 mm From Namibia

13.31 ct Loose Pink Kunzite, 13.5 x 11.1 mm Cushion Cut From Afghanistan

0.81 carat Blue Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5 x 5 mm

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