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.

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Overall Rating -> 9

My first purchase went well. I will purchase more gems in the future.

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Not easy enough to buy by exact size, and many stones aren't carbechon curved shape on top

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making my own jewelry for my birth stone

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

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

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Gemstones A-Z

Buy Round Shape 10 mm Gems

7.57 ct Round Tiger's Eye, 9.9 mm From Thailand

14.52 carat Oval Pyrope Garnet, loose Certified Pyrope Garnet from Madagascar, Natural Untreated Gem, 15.3 x 13.3 mm

3.97 carat Yellow Citrine, loose Citrine from Brazil, Natural Untreated Gem, 10.4 x 10.3 mm

2.76 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.1 x 4.1 mm

9.9 ct Carved Rose Quartz, 19 x 18.9 mm From Brazil

4.41 ct Square Cut Peridot, 6 x 5.9 mm From China

0.66 ct Blue Kyanite, 3.8 mm Round Cut From Nepal

25.23 ct Baguette Cat's Eye Opal, 21 x 15.9 mm From Brazil

2.28 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 13.9 x 6.8 mm

4.41 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 13.4 mm

27.79 ct Green Aventurine, 36.1 x 9.7 mm Pencil Cut From Brazil

2.65 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gems, 9.1 x 7.1 mm

1.33 ct Green Sphene, 6.4 x 6.3 mm Oval Cut From Sri Lanka

14.42 carat Brown Spessartite Garnet, Carved Rose loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 12.8 x 11.9 mm

22.76 ct Oval Star Ruby, 17.9 x 15.4 mm From Madagascar

21.47 ct Loose Pear Charoite, 27.6 x 15.8 mm From Russia

3.39 ct Yellow Sillimanite, 8.8 x 6.7 mm Oval Cut From Sri Lanka

2.24 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5.1 mm

0.27 ct Black Diamond, 3 mm Diamond Cut From India

0.06 ct Black Diamond, 2.5 mm Diamond Cut From India

1.06 ct Marquise Cut Peridot, 8.1 x 4 mm From China

4.74 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15 x 10.1 mm

4.3 carat Sky Blue Topaz, loose Topaz from Brazil, Natural Gems, 7.2 x 5.3 mm

2.01 carat Sky Blue Topaz, loose Topaz from Brazil, Natural Gems, 6.9 x 5 mm

0.35 ct Round Cut Chrysoberyl Cat's Eye, 3.4 mm From Sri Lanka

6.2 carat Pear Pietersite, loose Certified Pietersite from Namibia, Natural Untreated Gems, 14 x 8.5 mm

26.34 ct Oval Rainbow Moonstone, 25.9 x 17 mm From the United States

0.58 carat Purple Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 6.6 x 4.3 mm

24.14 ct Oval Cut Rose Quartz, 22.1 x 18.1 mm From South Africa

0.55 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 5 mm

13.93 ct Oval Nuummite, 20.1 x 13.1 mm From India

3.32 ct Asscher Cut Rose Quartz, 9.3 x 9.2 mm From South Africa

Gemstone Information

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