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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Overall Rating -> 9

Not easy enough to buy by exact size, and many stones aren't carbechon curved shape on top

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Very pleased with shopping on this site. It's easy to navigate and information about gemstones is very good.

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Very good, very fast, everything as described.

Posted By B in October, 2023

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Overall Rating -> 10

The gem stone always has a great selection of beautiful stones. The calibrated stone fit my ring perfectly. Thank you gem select !

Posted By Jen in August, 2023

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Gemstones A-Z

Buy Cushion Shape 10x8 mm Gems

2.45 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Tanzania, Natural Untreated Gem, 9.8 x 5.7 mm

1.86 carat Orange Zircon, Oval loose Zircon from Tanzania, Natural Untreated Gem, 8.1 x 6.1 mm

1.98 ct Cushion Cut Peridot, 8 x 6.4 mm From Myanmar

1.51 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 9.3 x 4.8 mm

13.22 ct Marquise Slice Ruby in Fuchsite, 23.9 x 15.1 mm From Ethiopia

1.5 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5 mm

2.92 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10 x 9.9 mm

1.35 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 11.8 x 3.7 mm

19.72 carat Brown Spessartite Garnet, Carved Rose loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 15.6 x 14.3 mm

2.21 carat Orange Zircon, Oval loose Zircon from Tanzania, Natural Untreated Gem, 8.1 x 6.8 mm

20.6 ct Yellow Aventurine, 31.2 x 9.3 mm Pencil Cut From Brazil

1.85 carat Red Spessartite Garnet, Round loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 4.2 mm

1.37 ct Oval Cut Peridot, 7.9 x 6 mm From China

19.17 ct Oval Serpentine, 26.8 x 16.5 mm From the United States

35.5 ct Carved Rose Quartz, 33.6 x 17.6 mm From Brazil

0.73 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gem, 7 x 4.8 mm

1.92 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.2 x 6.2 mm

16 ct Oval Quartz With Marcasite, 21.4 x 14.4 mm From Brazil

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

3.57 ct Asscher Cut Rose Quartz, 9.2 x 9.1 mm From South Africa

4.54 ct Marquise Quartz With Marcasite, 18 x 8.4 mm From Brazil

30.99 ct Oval Jasper, 28.6 x 14.5 mm From Indonesia

0.91 carat Round Mystic Quartz, loose Certified Mystic Quartz from Brazil, Natural Gems, 5.1 mm

11.84 ct Brown Moonstone, 12.7 x 12.5 mm Carved From India

3.08 ct Oval Rutile Quartz, 11.7 x 8 mm From India

2.78 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 9.1 mm

2.12 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 6.1 x 4.1 mm

35.23 ct Green Jadeite, 37.6 x 17.2 mm Carved From Myanmar

13.13 carat Bi-color Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 12.3 x 11.5 mm

8.93 ct Square Labradorite, 11.8 x 10.2 mm From Madagascar

3.26 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Tanzania, Natural Untreated Gem, 9.8 x 6.7 mm

7.33 ct Brown Enstatite, 16.4 x 7.6 mm Octagon Cut From Brazil

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