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

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 -> 8

I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

Posted By Mark in March, 2024

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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

I purchase all of my stones from GemSelect! They're the best I've found for both selection and value.

Posted By Terry in June, 2023

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Overall Rating -> 10

this was very easy im exited to get my order

Posted By Mr. in April, 2024

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Overall Rating -> 10

Everything was fine.

Posted By Matt in March, 2024

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Overall Rating -> 10

The website is user friendly, has excellent selection. I've always found what I was looking for with Gem Select. When others don't have it they do. And most important, they have a way for you to pay without using PayPal. I cannot use PayPal they closed my account because of no cell phone.

Posted By NJD in September, 2023

Source: Bizrate

Overall Rating -> 10

all good

Posted By John in December, 2023

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Overall Rating -> 10

The website was very easy to navigate. We appreciated the details about each gem, and the sort and search features of the website were helpful and easy to use.

Posted By AV in May, 2023

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Overall Rating -> 10

Great site

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Overall Rating -> 10

I found it to be easy to browse and easy to use

Posted By Kyle in December, 2023

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Overall Rating -> 10

Always an easy experience using Gem select.

Posted By Jeff in November, 2023

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Overall Rating -> 10

Everthing about researching and ordering from Gemselect was easy and uncomplicated. In the past I had payment problems, but your customer rep, Thomas, helped me get everything right. I will continue using Gemselet in the future for these reasons.

Posted By WildwillyfromArizona in August, 2023

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Overall Rating -> 10

Love gemselect

Posted By Joshua Howard in March, 2024

Source: Bizrate

Overall Rating -> 10

Interested in unusual stones and found many that I purchased or will purchase in the near future. I have been a customer of gem select for almost ten years and have always been pleased with buying experience and the delivered product

Posted By Fairhope Pete in December, 2023

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Gemstones A-Z

Buy Round Shape 10 mm Gems

0.6 ct Loose Yellow Sapphire, 4.5 x 4.5 mm Cushion Cut From Tanzania

0.57 carat Pear Shape Color-Change Garnet, loose Certified Color-Change Garnet from Madagascar, Natural Untreated Gem, 6 x 4.1 mm

2.53 ct White Moonstone, 8.2 mm Round Cut From India

13.91 ct Oval Cut Strawberry Quartz, 16.2 x 13.8 mm From Russia

9.12 ct Fancy Fire Agate, 14.7 x 12.3 mm From Mexico

0.46 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 6.3 x 4.1 mm

1.16 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 9.1 x 7.1 mm

7.98 ct Round Rutile Quartz, 13 mm From India

4.17 carat Pear Larimar, loose Certified Larimar from the Dominican Republic, Natural Untreated Gem, 13 x 8.9 mm

8.71 ct Loose Oval Agate, 12.2 x 11.4 mm From Indonesia

3.18 ct Orange Moonstone, 6.9 x 6.9 mm Cushion Cut From India

4.22 carat Carved Round Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.6 mm

0.71 carat Yellow Citrine, Heart loose Citrine from Brazil, Natural Untreated Gem, 6.2 x 6.1 mm

0.6 ct Loose Yellow Sapphire, 4.1 x 4.1 mm Square Cut From Tanzania

1.19 ct Yellow Beryl, 7.2 mm Round Cut From Brazil

1.48 ct Loose Orange Hessonite Garnet, 7.7 x 6.4 mm Oval Cut From Madagascar

4.59 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gems, 12.1 x 6 mm

0.51 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.2 x 4.1 mm

0.14 ct Oval Cut Iolite, 4.7 x 3 mm From Madagascar

7.72 carat Orange Zircon, Oval loose Zircon from Sri Lanka, Natural Untreated Gems, 6 x 4.1 mm

3.24 ct Orange Sunstone, 7.2 x 5.2 mm Oval Cut From Russia

11.34 ct Round Star Moonstone, 13 mm From India

1.07 carat Bi-color Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 6.5 x 5 mm

0.43 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 6 x 4.2 mm

0.71 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6.2 x 5.2 mm

1.24 ct Oval Sillimanite Cat's Eye, 7.5 x 5 mm From Madagascar

1.36 carat Princess-Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.9 x 4.9 mm

0.96 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.9 x 5.2 mm

1.8 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5 x 5 mm

7.91 carat Oval Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 13.4 x 11.5 mm

1.34 ct Oval Black Opal, 6.1 x 4.2 mm From Ethiopia

0.9 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7.1 x 5.1 mm

Gemstone Information

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