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

Fantastic dealer for quality gemstones. Website is easy to navigate, selection is superb, delivery of purchases is prompt. Easy to select incorrect payment options, however.

Posted By David W in May, 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.

Posted By Kuba in December, 2023

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Overall Rating -> 10

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

Posted By Kate in December, 2023

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Overall Rating -> 10

Overall, the whole process was just great.

Posted By Thatoneguy in August, 2023

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Overall Rating -> 10

This is only the second time I have ordered from GemSelect. I am a prolific gemstone collector and I wish I had found this site sooner!

Posted By Beachcomber in September, 2023

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Overall Rating -> 10

Excellent site.

Posted By Boru in December, 2023

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Overall Rating -> 10

Easy to use,I have spent many hours looking at the site

Posted By Skip in November, 2023

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Overall Rating -> 10

great. thank you

Posted By Carrotroller in July, 2023

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Overall Rating -> 8

Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

Posted By Nick in March, 2024

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Overall Rating -> 10

Always have good experience

Posted By Ginnie in September, 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

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 -> 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

Found what I was looking for

Posted By Rian in June, 2023

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Overall Rating -> 10

Found the stone I wanted which was delivered quickly and met expectations.

Posted By GemGrammy in January, 2024

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Gemstones A-Z

Buy Round Shape 10 mm Gems

1.33 carat White Zircon, Diamond-Cut loose Zircon from Myanmar, Natural Gem, 6.4 mm

1.9 ct Yellow Quartz, 8.7 x 8.7 mm Carved From Brazil

12.87 ct Oval Boulder Opal, 21 x 10 mm From Australia

1.19 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6 mm

5.78 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15.2 x 9.2 mm

1.14 carat Pink Morganite, Pear Shape loose Morganite from Brazil, Natural Untreated Gem, 9.2 x 5.9 mm

1.44 ct Loose Pink Tourmaline, 7.9 x 6.2 mm Oval Cabochon From Mozambique

1.11 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 7.2 x 7 mm

1.4 ct Blue Apatite, 5.1 x 4 mm Oval Cut From Madagascar

1.25 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 4.3 x 3.5 mm

3.98 carat Black Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 10.9 x 7.1 mm

29.09 ct Cushion Fossil Coral, 20.5 x 13.2 mm From Indonesia

12.31 ct Round Quartz Cat's Eye, 10.9 mm From India

1.33 carat Orange Hessonite Garnet, Square loose Hessonite Garnet from Sri Lanka, Natural Untreated Gems, 3.4 x 3.4 mm

1.56 carat Pear Shape Rainbow Moonstone, loose Certified Rainbow Moonstone from Sri Lanka, Natural Untreated Gems, 5.1 x 5.1 mm

31.03 ct Oval Fossil Coral, 22.3 x 12.6 mm From Indonesia

7.35 ct Baguette Tiger's Eye, 14.3 x 10.3 mm From Thailand

0.82 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gems, 5.9 x 4 mm

3.85 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 11.5 x 9.2 mm

0.59 ct Loose Purple Sapphire, 5.3 x 4.3 mm Oval Cut From Tanzania

8.43 ct Carved Prehnite, 16.2 x 10.6 mm From South Africa

3.08 ct Yellow Quartz, 11.4 x 11.3 mm Carved From Brazil

6.21 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 14.6 mm

12.79 ct Yellow Quartz, 16.1 x 16 mm Octagon Concave Cut From Brazil

0.56 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gem, 5.9 x 4.2 mm

0.39 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 6.2 x 4 mm

13.77 ct Marquise Jasper, 31.9 x 12.5 mm From Mexico

8.8 ct Green Jadeite, 16.6 x 13.5 mm Oval Cut From Myanmar

3.67 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 12.1 x 6.1 mm

1.5 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5.1 mm

5.8 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14.2 x 10 mm

3.13 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 13 x 9 mm

Gemstone Information

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Gemstone EDUCATION

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