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 -> 10

Easy to use website, made it very easy to buy. Will shop here again.

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Overall Rating -> 10

Super easy to do business for great products.

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Overall Rating -> 10

I find the website user friendly.

Posted By Becky in August, 2023

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Overall Rating -> 10

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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Overall Rating -> 10

Love Gem select. great gems for the price. Can't beet them

Posted By Apps in September, 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 -> 10

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.

Posted By Apps in November, 2023

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Overall Rating -> 10

After having looked at other purchasing sites, this is my first choice.

Posted By MJC in January, 2024

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Overall Rating -> 10

Had a problem ordering first time. Someone from Gem Select reached out to me and cleared problem and I made purchase.

Posted By Myrtle in February, 2024

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Overall Rating -> 7

I feel pretty good so far, pending the delivery of the item ordered.

Posted By Steve in November, 2023

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Overall Rating -> 10

I searched for the item by description and millimeter and had my choice come up and then made the best selection.

Posted By Tim in April, 2024

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Overall Rating -> 10

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.

Posted By Dee in September, 2023

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Overall Rating -> 10

I bought a small ring green so I may practice my jewelry making.

Posted By HairyOtter in July, 2023

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Overall Rating -> 10

Best place to buy gem stones, dont bother shopping else where. Prices are great, no issues with shipping and customer service is the best.

Posted By J in December, 2023

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Overall Rating -> 10

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023

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Gemstones A-Z

Buy Round Shape 10 mm Gems

1.74 ct Round Cut Strawberry Quartz, 8 mm From Russia

7.33 ct Yellow Quartz, 11.9 x 11.6 mm Carved From Brazil

24.62 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 26.1 x 22.7 mm

9.71 ct Oval Pietersite, 20.2 x 10.9 mm From Namibia

0.13 ct Black Diamond, 2.2 x 2.1 mm Princess Cut From India

40.4 carat Pear Lepidolite, loose Certified Lepidolite from the United States, Natural Untreated Gem, 38.3 x 27.5 mm

1.52 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.6 x 6.3 mm

1.73 ct Loose White Sapphire, 4.5 mm Diamond Cut From Madagascar

0.8 ct Loose Pink Sapphire, 6.8 x 6.3 mm Odd Shaped From Tanzania

2.5 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 10.1 x 5.1 mm

1.77 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.3 x 6.8 mm

2.3 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 6 x 4 mm

9.63 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 14.2 x 10.1 mm

0.99 ct Blue Kyanite, 7 x 5 mm Oval Cut From Nepal

32.39 ct Oval Cat's Eye Opal, 22.3 x 20.3 mm From Brazil

0.84 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 8.5 x 5.3 mm

0.33 carat Square Emerald, loose Certified Emerald from Colombia, Natural Gem, 3.8 x 3.8 mm

0.7 ct Loose White Sapphire, 5.1 mm Round Cut From Tanzania

17.46 ct Cushion Jasper, 24 x 17.5 mm From Indonesia

5.73 carat Blue Zircon, Round loose Zircon from Cambodia, Natural Gem, 9 mm

1.43 ct Yellow Quartz, 9.2 x 4.6 mm Marquise Cut From Brazil

2.39 ct Red Coral, 12.3 x 5.6 mm Oval Cut From Australia

5.83 ct Oval Star Moonstone, 13.2 x 10.6 mm From India

3.8 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 13.1 x 9 mm

1.19 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 7.4 x 5.3 mm

2.54 ct Loose Orange Moonstone, 9.1 x 7 mm Cushion Cut From India

1 ct Purple Spinel, 6.4 x 4.9 mm Oval Cut From Tanzania

0.98 ct Round Strawberry Quartz, 6.2 mm From Russia

9.49 carat Pink Kunzite, Pear Shape loose Kunzite from Afghanistan, Natural Untreated Gem, 17.3 x 8.8 mm

0.64 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 7.8 x 4.4 mm

0.38 ct Oval Chrysoberyl Cat's Eye, 3.5 x 3.4 mm From Sri Lanka

0.83 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7.1 x 5.2 mm

Gemstone Information

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