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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i love this site, the gems are always of good quality, i've been buy gifts from the site for 10 years, love it

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Easy to use. Limited supply of higher quality gemstones.

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Overall Rating -> 9

over the experience was similar to other sites i have used. The only real note I have is the checkout experience was tedious and discriminatory, i wouldn't accept visa gift cards, which not only have guaranteed funds but help protect from misuse of personal information, but would not accept my visa b/c it is a prepaid card. I don't have bank account and I have been using the prepaid card for years without issue so this was disappointing to me. I feel safer using reputable gem sites rather than amazon or ebay (I have been sold fake gems with fake certs on both), but not being able to use my own valid legitimate funds and having to find a friend to buy for me b/c I use a non-bank card like 40% of the country is insulting.

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The selection and filtering is a little overwhelming, but that's only because there is so much to choose from.

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I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

Posted By ChiChi in January, 2024

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Overall Rating -> 9

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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Purchasing from Gem Select was a pleasant and easy experience. The photos of the stones I was interested in were an accurate depiction of the stones I received. Ordering was easy and the items arrived within a week. Over all it was a very positive experience.

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I have had and will always have a great time shopping at GemSelect. It's a great web site with great products and great service.

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Gemstones A-Z

Buy Cushion Shape 10x8 mm Gems

0.73 carat Opal, loose Certified Opal from Ethiopia, Natural Gem, 8.6 x 8 mm

5.85 ct Square Malachite, 9 x 8.7 mm From Congo

0.92 carat Orange Hessonite Garnet, Round loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 5.7 mm

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

1.55 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gem, 6.9 mm

0.68 ct Loose Yellow Sapphire, 6.1 x 5 mm Oval Cut From Tanzania

7.3 ct White Moonstone, 9 mm Round Cut From India

0.96 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6.8 x 5.2 mm

11.65 ct Octagon Cut Smoky Quartz, 13.7 x 13.7 mm From Brazil

2.19 ct Oval Cut Golden Beryl, 9.9 x 8 mm From Madagascar

9.58 ct Oval Star Ruby, 12.7 x 10.4 mm From Madagascar

0.69 carat Blue Sapphire, Marquise-Cut loose Sapphire from Madagascar, Natural Gem, 7.8 x 3.9 mm

2.25 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8.9 x 6.9 mm

0.94 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 15.4 x 2.9 mm

17.75 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 17.2 x 15.2 mm

1.69 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.2 x 5.2 mm

36.4 ct Oval Checkerboard Labradorite, 33 x 23.6 mm From Madagascar

3.73 ct Loose Round Spectrolite, 8.2 mm From Finland

6.21 carat Pear Shape Smoky Quartz, loose Certified Smoky Quartz from Brazil, Natural Untreated Gem, 14.9 x 10.9 mm

0.77 ct Oval Spectrolite, 8.3 x 4.4 mm From Finland

2.04 ct Red Andesine Labradorite, 9.1 x 7.1 mm Oval Cut From Congo

0.89 ct Oval Cut Peridot, 7.1 x 5.1 mm From China

5.35 ct Loose Round Agate, 10.6 mm From Indonesia

4.52 ct Blue Star Sapphire, 6.9 x 5.1 mm Oval Cut From Thailand

0.41 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gem, 5.2 x 4.1 mm

2.66 ct Orange Moonstone, 8 x 6.1 mm Cushion Cut From India

0.04 ct Black Diamond, 2.1 mm Diamond Cut From India

0.48 carat Round Grossularite Garnet, loose Certified Grossularite Garnet from Tanzania, Natural Untreated Gem, 4.9 mm

0.47 ct Loose Purple Sapphire, 5.9 x 4.1 mm Oval Cut From Madagascar

3.27 carat Orange Zircon, Emerald Cut loose Zircon from Tanzania, Natural Untreated Gems, 7.3 x 4.9 mm

0.59 ct Red Spinel, 5.5 x 4.5 mm Cushion Cut From Tanzania

3.16 carat Pear Shape Rainbow Moonstone, loose Certified Rainbow Moonstone from India, Natural Untreated Gems, 4.9 x 4.9 mm

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