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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Gemstones A-Z

Buy Round Shape 10 mm Gems

1.6 ct Round Pietersite, 7.7 mm From Namibia

3.42 carat Green Sapphire, Oval loose Sapphire from Tanzania, Natural Gems, 5.8 x 4.7 mm

2.48 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 9.2 x 7.4 mm

3.25 ct Black Star Sapphire, 10.6 x 8 mm Oval Cut From Thailand

1.81 carat Red Malaya Garnet, Round loose Malaya Garnet from Tanzania, Natural Untreated Gem, 6.8 mm

19.98 ct Oval Rose Quartz, 18.1 x 13.2 mm From South Africa

0.01 ct Loose Green Diamond, 1.9 mm Diamond Cut From India

2.86 ct Round Cut Golden Beryl, 10.2 mm From Madagascar

1.35 carat Red Malaya Garnet, Marquise Cut loose Malaya Garnet from Tanzania, Natural Untreated Gem, 10.1 x 5.1 mm

1.72 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.2 x 4.1 mm

0.76 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7 x 4.9 mm

0.17 ct White Diamond, 2.8 mm Diamond Cut From Brazil

2.85 ct Asscher Cut Rose Quartz, 9 x 9 mm From South Africa

5.83 ct Loose Trillion Cut Amethyst, 10.1 x 9.9 mm From Brazil

0.65 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 5.1 x 5.1 mm

4.59 ct Oval Cat's Eye Opal, 12.7 x 10.3 mm From Madagascar

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

1.37 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 10.2 x 8 mm

0.36 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 4.8 x 3.9 mm

1.98 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.9 x 6.8 mm

1.86 carat Swiss Blue Topaz, Square loose Topaz from Brazil, Natural Gem, 6.9 x 6.9 mm

26.38 ct Baguette Rose Cut Onyx, 23.1 x 18 mm From Sri Lanka

8.08 ct Carved Prehnite, 16 x 11.1 mm From South Africa

1.73 ct Round Prehnite, 7.2 mm From South Africa

3.7 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gem, 14.8 x 7 mm

1.53 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5.1 x 5 mm

13.44 carat Pear Obsidian, loose Certified Obsidian from the United States, Natural Untreated Gem, 22.8 x 14 mm

4.19 carat Blue Sapphire, Oval loose Sapphire from Sri Lanka, Natural Gem, 9.7 x 9 mm

1.12 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gem, 7.1 x 5.1 mm

1.09 carat Orange Hessonite Garnet, Round loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 5.8 mm

2.19 ct Purple Kunzite, 7 x 6.7 mm Cushion Cut From Afghanistan

36.22 ct Multicolor Fossil Coral, 21.7 x 14.6 mm Cushion Cut From Indonesia

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