Calibrated 8 x 8 mm Trillion Shape Loose Natural Gemstones from Ge...

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 8 mm x 8mm 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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Gemstones A-Z

Buy Trillion Shape 8x8 mm Gems

0.53 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 5.3 x 4.1 mm

2.26 ct Yellow Sphene, 6.5 x 5.4 mm Oval Cut From Sri Lanka

0.27 ct Blue Kyanite, 3.7 mm Round Cut From Nepal

4.61 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.8 x 7.9 mm

2.85 ct Oval Prehnite, 7.7 x 6.5 mm From South Africa

0.5 carat Orange Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6.1 x 4.1 mm

0.6 ct Loose Purple Sapphire, 6.8 x 4.9 mm Odd Shaped From Madagascar

0.09 ct Black Diamond, 2.1 mm Diamond Cut From India

1.27 ct Loose Yellow Sapphire, 5 mm Round Cut From Tanzania

2.33 ct Pink Morganite, 6.1 x 6 mm Oval Cut From Afghanistan

1.98 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15 x 4.6 mm

1.21 carat Pear Shape Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6.8 x 4.7 mm

8.5 carat Bi-color Ametrine, Pear Shape loose Ametrine from Brazil, Natural Untreated Gem, 16.3 x 10.6 mm

17.33 ct Yellow Quartz, 15.3 x 15.2 mm Asscher Cut From Brazil

2.32 ct Cushion Cut Peridot, 8.1 x 7.2 mm From Myanmar

8.7 ct Yellow Quartz, 15.4 x 9.7 mm Octagon Cut From Brazil

1.96 carat Oval Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 7 x 5.1 mm

0.44 ct Loose Orange Sapphire, 4.7 x 4.6 mm Heart Cut From Tanzania

0.68 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.2 x 4.3 mm

2.36 ct Oval Sillimanite Cat's Eye, 7.3 x 5.5 mm From Madagascar

1.32 ct Pink Morganite, 8.8 x 6.7 mm Oval Cut From Afghanistan

1.82 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 8 x 8 mm

10.53 ct Ball Agate, 11.2 mm From Indonesia

40.09 ct Cushion Charoite, 45 x 26.4 mm From Russia

2.03 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 9.1 x 9 mm

1.16 ct Oval Sillimanite Cat's Eye, 6.4 x 5 mm From Madagascar

20.4 ct Cushion Lapis Lazuli, 20 x 15 mm From Afghanistan

2.54 ct Octagon Cut Peridot, 5.9 x 4 mm From China

4.69 ct Yellow Quartz, 10.3 x 10.2 mm Carved From Brazil

17.84 carat Pear Chalcedony, loose Certified Chalcedony from Brazil, Natural Untreated Gem, 21.1 x 19.9 mm

15.45 ct Carved Ruby-Zoisite, 14.5 x 14.3 mm From Tanzania

0.41 ct Pink Spinel, 4.7 x 3.7 mm Cushion Cut From Tanzania

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