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

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I was looking for ammolite for my husband. Other websites are not always clear about whether they have genuine ammolite or simulated ammolite. I have purchased from GemSelect before and trust that the stones are genuine. Finding the stones I want is easy, and I love all of the search filter options!

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So many gorgeous stones! The only "complaint" I have is it's difficult to visualize sizes in mm. Perhaps some way to compare in inches?It has been a long time since I bought stones from Gem select, but the process wasn't too difficult.

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Gemstones A-Z

Buy Cushion Shape 10x8 mm Gems

0.64 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 5.2 mm

1.73 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 16.2 x 3.6 mm

4.62 ct Fancy Fire Agate, 13.5 x 10.5 mm From Mexico

1.02 ct Oval Strawberry Quartz, 7 x 5.1 mm From Russia

3.07 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.5 mm

6.08 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14.9 x 10.6 mm

1.23 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gem, 8.9 x 6.9 mm

3.7 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 13.1 x 9.1 mm

1.09 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5.2 x 5.1 mm

2.34 ct Marquise Concave Cut Smoky Quartz, 18 x 7 mm From Brazil

1.21 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 6.9 x 5 mm

17.11 carat Cameo Mother of Pearl, loose Certified Mother of Pearl from China, Natural Gem, 25 mm

0.87 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7.2 x 5.1 mm

6.81 carat Pink Mystic Topaz, Pear Shape loose Mystic Topaz from Brazil, Natural Gem, 14.1 x 10 mm

2.45 ct Cushion Cut Peridot, 8.8 x 6.5 mm From Myanmar

1.98 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 7.3 x 7.1 mm

2.91 ct Oval Prehnite, 9.5 x 8 mm From South Africa

0.61 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.1 x 4.1 mm

7.17 ct Green Agate, 13.2 x 11.9 mm Oval Cut From India

0.25 ct White Diamond, 3.1 mm Diamond Cut From India

0.33 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 4 x 3.9 mm

4.78 carat White Topaz, Oval loose Topaz from Brazil, Natural Untreated Gem, 11.2 x 9.2 mm

0.21 carat Baguette Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 5 x 2.9 mm

19.12 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 28.7 x 17.2 mm

10.04 ct Oval Tiger's Eye, 18.3 x 13.4 mm From India

1.32 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 6.9 x 5.1 mm

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

23.63 ct Loose Cushion Cut Hiddenite, 19.6 x 12.9 mm From Afghanistan

2.99 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 12.2 mm

1.4 ct Pink Morganite, 7.1 mm Round Cut From Afghanistan

0.6 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.2 x 4 mm

2.14 ct Yellow Sphene, 7.4 x 7.1 mm Oval Cut From Sri Lanka

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