Calibrated Cushion Shape Gemstones 10x8 mm size from GemSelect

Some people by gems by color or prize, but for many, it is best to buy gems by size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated cushion shapes, facet cut and cabochon gems available now in 10 mm x 8 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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Gemstones A-Z

Buy Cushion Shape 10x8 mm Gems

37.96 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 23.1 x 18.7 mm

4.93 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 4.1 x 4.1 mm

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

1.42 ct Loose Oval Cut Black Opal, 10.4 x 7.6 mm From Ethiopia

2.17 carat Pear Shape Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 13.4 x 8.3 mm

1.03 ct Octagon Cut Color-Change Diaspore, 6.2 x 5.9 mm From Turkey

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

11.91 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 14.3 x 11.8 mm

4.29 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

5.95 ct Rainbow Pyrite, 17.3 x 12.4 mm From Russia

2.89 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 12.8 x 8.8 mm

8.82 ct Octagon Concave Cut Smoky Quartz, 14.1 x 14.1 mm From Brazil

4.03 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 11.1 x 9 mm

11.29 ct Brown Moonstone, 16.2 x 12.1 mm Oval Cut From India

1.75 ct Loose Oval Cut Black Opal, 11.4 x 8.1 mm From Ethiopia

4.96 carat Sky Blue Topaz, Round loose Topaz from Brazil, Natural Gems, 8.3 mm

0.44 ct Loose Orange Sapphire, 5.9 x 3.9 mm Oval Cut From Tanzania

3.89 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6 x 4.1 mm

4.99 ct Orange Sunstone, 14 x 10.2 mm Oval Cut From India

1.89 carat Baguette Facet Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gems, 3 x 1.9 mm

9.49 ct Flower Cut Prehnite, 13.5 x 13.4 mm From South Africa

1.92 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 24.1 x 3 mm

20.82 ct Odd Shaped Rhodochrosite, 23.7 x 14.4 mm From Argentina

12.31 ct Pink Kunzite, 12.8 x 12.6 mm Octagon Cut From Afghanistan

3.53 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gems, 8 x 6.1 mm

2.03 ct White Moonstone, 9.1 x 7 mm Oval Cut From India

1.23 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 4.4 x 3.5 mm

0.99 ct Green Sphene, 5.9 x 5.6 mm Oval Cut From Sri Lanka

2.55 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 8.7 mm

2.16 ct Loose Oval Malachite, 10.1 x 6.9 mm From Congo

16.7 ct Round Rutile Quartz, 13 mm From India

28.05 ct Oval Cut Rose Quartz, 22.5 x 16.3 mm From South Africa

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