Buy 10 mm Round Calibrated Gemstones from GemSelect

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 Round shapes, facet cut and cabochon gems available now in 10 mm diameter 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 usually 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

GemSelect has a fantastic assortment of Semi-precious stones. I have not found any other web site with the variety you have.

Posted By RobDill in August, 2023

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Overall Rating -> 10

Easy to find the stones I was looking for. Always good quality stones

Posted By Erin in June, 2023

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Overall Rating -> 10

Very excited and impressed with all your products. Keep up the good work....more different stones to choose from. I like Cabachons.

Posted By Meow in June, 2023

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Overall Rating -> 10

The website design is a bit finicky for mobile, but Im sure its most likely just a mobile issue. Amazing selection of products, great prices.

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Overall Rating -> 9

I have been buy from you for years

Posted By JohnA in May, 2023

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Overall Rating -> 10

I have used GemSelect for several years and plan to shop more in the further. This is a good source of information on gemstones. I love looking at and learning about them. Lot more than I ever knew existed.

Posted By Bikerwalrus in October, 2023

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Overall Rating -> 10

Convenient selection, arrival on time

Posted By Alin in February, 2024

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Overall Rating -> 10

Awesome

Posted By Mic in May, 2023

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Overall Rating -> 10

Gem Select has gems at afffordable prices.

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Overall Rating -> 10

I enjoyed browsing though different varieties of rubies. I felt that the experience was simple and easy to navigate!

Posted By Daws in July, 2023

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Overall Rating -> 7

I placed order#384714 based on the picture on your website and the stone came in much darker. I'm sure it's the same stone i ordered but your lighting made it seem a lighter blue. I was trying to match a stone for a customer and based on the picture it would have been close enough but the stone in person is a mile off.

Posted By Bobk in February, 2024

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Overall Rating -> 9

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Overall Rating -> 8

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Gemstones A-Z

Buy Round Shape 10 mm Gems

1.44 ct Cushion Cut Peridot, 8.2 x 6.2 mm From China

0.03 ct Blue Diamond, 1.8 mm Diamond Cut From India

4.18 ct Oval Quartz Cat's Eye, 10.2 x 8.9 mm From Sri Lanka

12.5 ct Loose Cushion Cut Hiddenite, 17.6 x 9.5 mm From Afghanistan

0.61 ct Red Spinel, 4.8 x 4 mm Cushion Cut From Tanzania

2.38 ct Cushion Cut Peridot, 8.5 x 7.4 mm From Myanmar

0.41 carat Green Sapphire, Trillion-Cut loose Sapphire from Madagascar, Natural Gem, 4.6 x 4.4 mm

2.19 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 4.1 x 3.1 mm

1.97 ct Oval Cut Andalusite, 6 x 4 mm From Brazil

14.07 carat Green Fluorite, Oval loose Fluorite from India, Natural Untreated Gem, 20.1 x 9.7 mm

1.19 ct Pink Morganite, 6.9 mm Round Cut From Afghanistan

3.01 ct Oval Prehnite, 8.4 x 6.3 mm From South Africa

23.59 ct Loose Oval Bloodstone, 23.6 x 18.2 mm From Madagascar

0.75 carat Blue Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.6 x 4.6 mm

1.65 ct Oval Sillimanite Cat's Eye, 8.1 x 5.7 mm From Madagascar

28.04 ct Pink Coral, 28.1 x 20.2 mm Carved From Taiwan

6 ct Yellow Quartz, 14.8 x 10.7 mm Carved From Brazil

1.02 carat Green Sapphire, Round loose Sapphire from Tanzania, Natural Gems, 4 mm

4.46 carat Yellow Citrine, Emerald Cut loose Citrine from Bolivia, Natural Untreated Gem, 11 x 9.1 mm

7.89 carat Blue Green Fluorite, Pear Shape loose Fluorite from India, Natural Untreated Gem, 13.4 x 11.7 mm

2.28 ct Orange Moonstone, 7 x 6.9 mm Square Cut From India

15.61 ct Cushion Chalcedony, 19.6 x 16.4 mm From Brazil

3.59 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 8.8 mm

0.9 ct Loose Purple Sapphire, 5.1 x 4.2 mm Oval Cut From Madagascar

1.81 carat Blue Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 6.6 x 6.5 mm

1.12 carat Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6 x 4 mm

1.57 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.2 x 5.1 mm

7.04 ct Round Agate, 12.1 mm From Indonesia

12.89 ct Oval Coral, 21 x 15.1 mm From Indonesia

0.15 ct Oval Chrysoberyl Cat's Eye, 3.3 x 3.2 mm From Sri Lanka

2.25 ct Round Tiger's Eye, 8.1 mm From Thailand

5.68 ct Round Rutile Quartz, 12.2 mm From India

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