Buy 11 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 11 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 11 mm Gems

4.16 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 9.8 mm

0.96 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 9.5 x 6.9 mm

1.44 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.8 x 4.9 mm

1.45 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 20.8 x 3.2 mm

1.99 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8.5 x 7 mm

11.44 carat Swiss Blue Topaz, Ball loose Topaz from Brazil, Natural Gems, 8.5 mm

1.33 carat Yellow Citrine, Baguette Cut loose Citrine from Brazil, Natural Untreated Gem, 9.8 x 5 mm

5.06 ct Oval Rutile Quartz, 13 x 9.1 mm From India

1.83 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8 x 6.1 mm

2.51 ct Round Cut Strawberry Quartz, 8.9 mm From Russia

3.86 ct Yellow Beryl, 10.3 x 8 mm Oval Cut From Madagascar

0.18 ct Brown Diamond, 3.6 mm Diamond Cut From India

0.4 ct Orange Sphalerite, 4.2 mm Round Cut From Spain

1.58 ct Orange Moonstone, 5.9 x 5.9 mm Trillion Cut From India

0.6 carat Emerald Cut Color-Change Garnet, loose Certified Color-Change Garnet from Madagascar, Natural Untreated Gem, 7.1 x 3.5 mm

1.05 ct Yellow Morganite, 7.9 x 5.9 mm Oval Cut From Afghanistan

6.17 ct Baguette Tiger's Eye, 12.1 x 10.1 mm From Thailand

49.2 ct Oval Jasper, 34.7 x 22.1 mm From Indonesia

1.02 carat Blue Sapphire, Marquise-Cut loose Sapphire from Madagascar, Natural Gem, 9 x 4.6 mm

2.83 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10 x 10 mm

10.54 carat Pear Rutile Quartz, loose Certified Rutile Quartz from India, Natural Untreated Gem, 17 x 13.6 mm

38.05 ct Pencil Cut Jasper, 40.6 x 11.4 mm From Indonesia

5.21 ct Round Concave Cut Smoky Quartz, 12.1 mm From Brazil

1.13 ct Purple Spinel, 6.5 x 5.7 mm Cushion Cut From Tanzania

8.13 ct Green Agate, 13.9 x 12.7 mm Oval Cut From India

2.61 ct Oval Checkerboard Smoky Quartz, 10.1 x 8 mm From Brazil

1.97 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 8 x 6.1 mm

169.76 ct Oval Dendritic Agate, 56.4 x 51 mm From India

18.9 ct Yellow Quartz, 17.4 x 14.4 mm Oval Cut From Brazil

51.54 carat Yellow Quartz, Pear Checkerboard loose Quartz from Brazil, Natural Gem, 36 x 22 mm

1.12 ct Loose Violet Sapphire, 7.4 x 5.1 mm Cushion Cut From Tanzania

0.46 carat Orange Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 5.8 x 4.1 mm

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