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

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

Source: Bizrate

Overall Rating -> 10

No issues at all. It was great.

Posted By LJXK in May, 2023

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Overall Rating -> 10

love yall

Posted By Rock hunter in August, 2023

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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

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

Posted By Jf in January, 2024

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Overall Rating -> 10

Very large selection of items and we used the stones to have several pieces of jewelry made for us.

Posted By Joe in January, 2024

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Overall Rating -> 10

Very easy. I have purchased a few times before and was satisfied each time. Thank you.

Posted By Ray 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 -> 9

An it was good.

Posted By Miguel in June, 2023

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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.

Posted By Iggywiggly in January, 2024

Source: Bizrate

Overall Rating -> 10

I love GemSelect, photos and details are great.

Posted By #1 in February, 2024

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Overall Rating -> 10

My first order. I am anxious to see if what I ordered is what I receive.

Posted By KRJ in July, 2023

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Overall Rating -> 10

I have used gm select a while ago and was always pleased with the products

Posted By Jaytee in November, 2023

Source: Bizrate

Overall Rating -> 10

all good

Posted By John in December, 2023

Source: Bizrate

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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Gemstones A-Z

Buy Round Shape 10 mm Gems

0.26 carat Purple Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 5.7 x 3.7 mm

3.28 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.2 x 9 mm

7.39 carat Sky Blue Topaz, Emerald Cut loose Topaz from Brazil, Natural Gems, 10 x 7.8 mm

3.09 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 10.3 x 8.1 mm

32.39 ct Oval Boulder Opal, 33.7 x 15 mm From Australia

73.43 carat Uvarovite Garnet Drusy, loose Certified Uvarovite Garnet Drusy from Russia, Natural Untreated Gem, 34.7 x 30.4 mm

1.65 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 17.3 x 3.3 mm

0.97 ct Blue Kyanite, 6 mm Round Cut From Nepal

2.09 ct Round Labradorite, 8.1 mm From Madagascar

1.6 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5.2 mm

2.56 ct Loose Yellow Sapphire, 2.6 x 2.6 mm Princess Cut From Tanzania

2.65 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 4.1 x 3.2 mm

43.91 ct Yellow Quartz, 25.4 x 18.9 mm Oval Cut From Brazil

2.84 carat Red Spessartite Garnet, Round loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 4.8 mm

1.71 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 9.8 x 4.9 mm

2.34 ct Yellow Cat's Eye Apatite, 7.9 x 7.2 mm Oval Cut From Kenya

3.49 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 9.1 x 8.9 mm

2.61 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.2 x 4.2 mm

0.18 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm

7.42 ct Fancy Fire Agate, 14.9 x 11.1 mm From Mexico

8 ct Loose Pear Charoite, 16.5 x 10.8 mm From Russia

0.93 ct Purple Spinel, 5.7 x 5.1 mm Cushion Cut From Tanzania

2.47 ct Yellow Apatite, 7.7 x 7.7 mm Asscher Cut From Madagascar

1.71 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5 mm

1.5 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gems, 3.3 mm

14.83 carat Black Tourmaline, Cushion loose Tourmaline from Mozambique, Natural Untreated Gem, 15.5 x 15.5 mm

6.28 ct Baguette Tiger's Eye, 12 x 10.1 mm From Thailand

7.21 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 10 x 8.3 mm

1.07 ct Yellow Beryl, 7.9 x 6 mm Oval Cut From Madagascar

16.77 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 15.2 x 12.7 mm

1.52 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 10.3 x 4.5 mm

0.84 ct Loose Yellow Sapphire, 4.7 x 4.7 mm Heart Cut From Tanzania

Gemstone Information

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