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

Selection ability was straightforward and easy.

Posted By Dave in May, 2023

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Overall Rating -> 8

Many gems at reasonable pricing

Posted By Skittlebird in May, 2024

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Overall Rating -> 10

I have received emails for about a year and today is the condition that had me decide on the purchase

Posted By Tim in April, 2024

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Overall Rating -> 10

Very good, very fast, everything as described.

Posted By B in October, 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

I have started a small gem brokerage. I find stones to meet clients needs. Gemselect has helped me find what people what.

Posted By Pirates Bounty in April, 2024

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Overall Rating -> 10

I love GemSelect, photos and details are great.

Posted By #1 in February, 2024

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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

the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

Posted By PixelComposer in January, 2024

Source: Bizrate

Overall Rating -> 10

Love gemselect

Posted By Joshua Howard in March, 2024

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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

The website is well organized and works fast forward and back. Plenty of filters. Each gem is described in detail and you receive the one pictured. Gem material info and sources available. I would like to see more specifics on sources besides country- at least region or state and in the US with Turquiose which mine. Thanks!

Posted By Orchidisle in February, 2024

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Overall Rating -> 9

It was simple and clear to understand.

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Overall Rating -> 10

I particularly like information about product provided with purchase.

Posted By Dick in May, 2023

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Overall Rating -> 10

Everything fine.

Posted By Hilario in December, 2023

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Gemstones A-Z

Buy Round Shape 10 mm Gems

6.87 ct Oval Coral, 16.8 x 11.4 mm From Indonesia

1.73 carat Baguette Facet Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gems, 2.9 x 1.8 mm

0.75 ct Yellow Beryl, 6.9 x 5.1 mm Cushion Cut From Brazil

1.24 ct Pink Morganite, 7.4 mm Round Cut From Afghanistan

2.25 ct Loose Trillion Concave Cut Mystic Quartz, 7.1 x 7 mm From Brazil

2.16 carat Swiss Blue Topaz, Emerald-Cut loose Topaz from Brazil, Natural Gem, 8.1 x 6.1 mm

1.16 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 6.7 x 5 mm

3.24 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 23 x 4 mm

2.61 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 9.3 x 7.7 mm

1.58 ct Blue Apatite, 5 x 4 mm Oval Cut From Madagascar

0.57 carat London Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gems, 6.1 x 3 mm

2.05 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 12.3 x 9.1 mm

1.48 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.2 x 4 mm

9.74 ct Asscher Cut Rose Quartz, 13.3 x 13.2 mm From South Africa

0.65 carat Oval Color-Change Garnet, loose Certified Color-Change Garnet from Tanzania, Natural Untreated Gem, 5.3 x 4.3 mm

0.84 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 8 x 6.1 mm

3.07 ct Diamond Cut Andalusite, 3.3 mm From Brazil

0.89 carat Green Sapphire, Trillion-Cut loose Sapphire from Madagascar, Natural Gem, 5.8 x 5.7 mm

14.78 ct Round Labradorite, 16.1 mm From Madagascar

2.91 ct Loose Oval Malachite, 8.5 x 6.8 mm From Congo

2.37 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 15.7 x 4.6 mm

2.51 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 22.2 x 3.6 mm

0.44 ct Loose Orange Sapphire, 4.6 x 4.5 mm Heart Cut From Tanzania

1.66 ct Oval Cut Peridot, 7.1 x 5.1 mm From China

2.26 ct Cushion Cut Peridot, 8.1 x 7.3 mm From Myanmar

38.66 ct Drilled Sphere Seraphinite, 14.2 mm From Russia

1.46 ct Pink Morganite, 6.9 mm Round Cut From Afghanistan

15.17 carat Swiss Blue Topaz, Carved Leaf loose Topaz from Brazil, Natural Gem, 18.8 x 13.3 mm

2.74 ct Round Strawberry Quartz, 9.6 mm From Russia

22.15 ct Brown Moonstone, 22.1 x 16.2 mm Oval Cut From India

1.58 ct Oval Sillimanite Cat's Eye, 7.7 x 5.5 mm From Madagascar

0.97 carat Purple Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 6.4 x 5.3 mm

Gemstone Information

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