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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Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

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Overall Rating -> 10

the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

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Overall Rating -> 10

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Overall Rating -> 10

Todo muy bien en la compra ahora esperar recibir el pedido.

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Overall Rating -> 10

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purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

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Gemstones A-Z

Buy Trillion Shape 15x15 mm Gems

6.88 carat Bi-color Ametrine, Cushion loose Ametrine from Brazil, Natural Untreated Gem, 16.5 x 10.3 mm

34.46 carat Pear Jasper, loose Certified Jasper from Indonesia, Natural Untreated Gem, 32.6 x 22.5 mm

3.8 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 11 x 8.8 mm

7.26 ct Yellow Apatite, 11.9 x 10.4 mm Cushion Cut From Madagascar

1.42 ct Green Sphene, 7.5 x 6.6 mm Oval Cut From Sri Lanka

8.1 ct Asscher Cut Smoky Quartz, 12.1 x 12.1 mm From Brazil

4.44 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 13.3 x 9.6 mm

1.58 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 5.9 x 3.8 mm

5.44 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 13.9 x 10.1 mm

0.6 ct Loose Purple Sapphire, 6.7 x 5 mm Oval Cut From Tanzania

0.67 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 7.1 x 5.1 mm

1.62 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5 x 3.9 mm

0.58 ct Round Cut Color-Change Diaspore, 4.7 mm From Turkey

18.49 ct Loose Cushion Cut Amethyst, 20 x 15.2 mm From Brazil

2.07 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8.6 x 7 mm

17.81 ct Oval Rainbow Moonstone, 22.2 x 13 mm From the United States

1.49 carat Oval Peridot, loose Certified from China, Natural Untreated Gems, 7 x 5 mm

1.09 carat Pear Shape Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gem, 7.8 x 5.4 mm

2.06 carat Swiss Blue Topaz, Emerald-Cut loose Topaz from Brazil, Natural Gem, 8.1 x 6.1 mm

29.35 ct Amethyst Geode Slice, 25.8 x 23.9 mm From Brazil

0.95 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 7.1 x 7 mm

2.12 carat Emerald Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5.5 x 3.7 mm

0.66 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 7.1 x 5.1 mm

10.91 ct Diamond Cut Smoky Quartz, 14.3 mm From Brazil

2.57 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4 x 4 mm

1.08 carat Trillion Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 5.3 x 5.3 mm

3.23 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5.1 mm

5.04 ct Oval Tiger's Eye, 9.1 x 7.3 mm From Thailand

0.56 ct Loose Yellow Sapphire, 4.5 x 4.4 mm Square Cut From Tanzania

1.57 ct Yellow Diamond, 5.9 x 5.8 mm Octagon Cut From South Africa

1.19 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6.2 x 4.2 mm

5.74 ct Oval Star Moonstone, 11.2 x 9.1 mm From India

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