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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Very excited and impressed with all your products. Keep up the good work....more different stones to choose from. I like Cabachons.

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I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

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Gemstones A-Z

Buy Round Shape 10 mm Gems

128.79 ct Green Agate, 32.2 x 31.2 mm Pyramid Cut From Indonesia

4.77 ct Rainbow Pyrite, 15.3 x 10.4 mm From Russia

7.89 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 11.1 x 9.1 mm

1.56 ct Oval Sillimanite Cat's Eye, 6.8 x 6.2 mm From Madagascar

14.74 ct Oval Rainbow Moonstone, 19.6 x 13.7 mm From the United States

0.54 carat Trillion Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gem, 5.3 x 5 mm

4.12 carat Yellow Citrine, Emerald Cut loose Citrine from Bolivia, Natural Untreated Gem, 10.9 x 9 mm

1.59 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.1 x 6 mm

8.83 ct Cushion Tiger's Eye, 14 x 11.9 mm From Thailand

1.37 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 8.9 x 6.9 mm

1.94 carat Pear Shape Mystic Quartz, loose Certified Mystic Quartz from Brazil, Natural Gem, 10.2 x 7 mm

4.49 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.2 x 7.3 mm

25.6 ct Oval Rainbow Moonstone, 26.6 x 14.4 mm From the United States

3.18 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gems, 8.3 x 8.1 mm

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

0.51 ct Loose Orange Sapphire, 5.9 x 4 mm Oval Cut From Tanzania

0.38 ct Loose Yellow Sapphire, 4.6 x 4.5 mm Heart Cut From Tanzania

0.74 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 8.9 x 4.2 mm

10.68 ct Oval Quartz With Marcasite, 16.9 x 14 mm From Brazil

10.48 ct Octagon Cut Smoky Quartz, 13.3 x 13.2 mm From Brazil

6.92 carat Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 12.7 x 11 mm

1.75 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 8 x 7.8 mm

8.91 carat Pink Morganite, Pear loose Morganite from Afghanistan, Natural Untreated Gem, 18.4 x 13.2 mm

1.31 ct Yellow Beryl, 9.1 x 6.9 mm Oval Cut From Madagascar

2.13 ct Yellow Beryl, 8.2 x 6 mm Oval Cut From Madagascar

0.76 ct Loose Purple Spinel, 5.1 x 4.5 mm Cushion Cut From Tanzania

1.62 ct Green Sphene, 7.8 x 6.1 mm Oval Cut From Sri Lanka

2.77 ct Loose Orange Moonstone, 13.9 x 6.9 mm Marquise Cut From India

38.34 ct Oval Bloodstone, 38.9 x 24.8 mm From Madagascar

19.72 ct Carved Prehnite, 19.8 x 15.5 mm From South Africa

9.6 carat Yellow Citrine, loose Citrine from Brazil, Natural Untreated Gem, 16 x 12.1 mm

1.63 ct Oval Cut Kornerupine, 5.9 x 4.2 mm From Sri Lanka

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