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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blessed be the lord blessed be the saved blessed be the work blessed be the traveled i write down my good times in these stones and when times are gray i can still se the sunny days refract in these stones

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Very excited and impressed with all your products. Keep up the good work....more different stones to choose from. I like Cabachons.

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Gemstones A-Z

Buy Trillion Shape 15x15 mm Gems

0.66 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6.1 x 4.5 mm

1.78 carat Yellow Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gems, 6 x 4.9 mm

3.02 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gem, 9.1 x 9.1 mm

2.37 ct Yellow Beryl, 9.2 mm Round Cut From Brazil

6.95 ct Yellow Quartz, 9.1 x 9 mm Carved From Brazil

3.45 ct Loose Yellow Sapphire, 4.9 x 3.2 mm Oval Cut From Tanzania

39.41 ct Round Hematite, 21.7 mm From Brazil

6.73 carat Carved Leaf Ruby, loose Certified Ruby from Madagascar, Natural Gem, 19.1 x 12.1 mm

27 ct Pencil Cut Tiger's Eye, 35.6 x 10.1 mm From Thailand

0.88 ct Black Diamond, 5.6 mm Diamond Cut From India

0.43 ct Loose Yellow Sapphire, 4.6 x 4.4 mm Heart Cut From Tanzania

3.96 ct Brown Moonstone, 9.2 x 9.1 mm Carved From India

6.8 ct Oval Agate, 13 x 11.2 mm From Indonesia

4.68 carat Yellow Citrine, Round Concave loose Citrine from Brazil, Natural Untreated Gem, 11.2 mm

13.25 ct Octagon Concave Cut Smoky Quartz, 16 x 15.9 mm From Brazil

25.04 ct Octagon / Emerald Cut Hematite, 20.9 x 15.1 mm From Brazil

2.15 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 9.7 x 7.7 mm

0.98 ct Oval Sillimanite Cat's Eye, 6.9 x 4.8 mm From Madagascar

0.93 carat Pear Shape Kornerupine, loose Certified Kornerupine from Sri Lanka, Natural Untreated Gem, 7.7 x 5.5 mm

4.98 ct Oval Prehnite, 8.8 x 7 mm From South Africa

3.56 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.7 x 8.7 mm

1.4 carat Orange Zircon, Pear Shape loose Zircon from Cambodia, Natural Untreated Gem, 8 x 5.8 mm

0.59 ct Loose Orange Sapphire, 5.5 x 3.9 mm Oval Cut From Madagascar

2.34 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gem, 12 x 6.1 mm

31.74 ct Pencil Cut Tiger's Eye, 36.1 x 11 mm From Thailand

2 carat Round Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 2.1 mm

26.64 carat Pear Obsidian, loose Certified Obsidian from Mexico, Natural Untreated Gem, 30.9 x 17.7 mm

9.14 ct Baguette Tiger's Eye, 15.8 x 11.9 mm From Thailand

2.77 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 11 x 6.2 mm

1.76 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.1 x 4.2 mm

14.15 ct Fancy Boulder Opal, 17.9 x 14.9 mm From Australia

41.45 ct Oval Hematite, 24.9 x 19.3 mm From Brazil

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