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

9.78 carat Brown Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gems, 13 x 9.1 mm

0.38 ct Loose White Sapphire, 4.5 mm Diamond Cut From Madagascar

36.28 ct Oval Coral, 33.3 x 23.2 mm From Mexico

0.41 ct Loose Yellow Citrine, 6.1 x 4 mm Oval Cut From Brazil

3.32 carat Yellow Apatite, Pear Shape loose Apatite from Madagascar, Natural Untreated Gem, 13.2 x 8.8 mm

3.07 ct Diamond Cut Andalusite, 3.3 mm From Brazil

8.58 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 12 x 9.9 mm

0.42 carat Green Sapphire, Emerald-Cut loose Sapphire from Tanzania, Natural Gem, 5.1 x 3.2 mm

1.09 ct Loose Round Cut Smoky Quartz, 7 mm From Brazil

1.03 ct Octagon Cut Color-Change Diaspore, 6.2 x 5.9 mm From Turkey

13.86 carat Pear Rutile Quartz, loose Certified Rutile Quartz from India, Natural Untreated Gem, 21.7 x 15.2 mm

2.06 carat Pear Shape Opal, loose Certified Opal from Ethiopia, Natural Gem, 15.2 x 7.7 mm

32.77 ct Cushion Jasper, 31.3 x 20.2 mm From Indonesia

0.66 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 6 x 3.9 mm

12.56 ct Oval Coral, 22.5 x 16.8 mm From Indonesia

6.92 ct Oval Actinolite Cat's Eye, 13.5 x 10.4 mm From the United States

1.24 ct Loose Yellow Sapphire, 6.5 x 5.3 mm Cushion Cut From Tanzania

18.94 ct Oval Rose Quartz, 16.8 x 15.5 mm From South Africa

0.77 ct Green Sphene, 6.6 x 4.7 mm Oval Cut From Sri Lanka

8.3 carat White Topaz, Square loose Topaz from Brazil, Natural Untreated Gems, 5.1 x 5.1 mm

0.44 carat Blue Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.1 x 3.9 mm

0.75 ct Loose Round Cut Lapis Lazuli, 5.9 mm From Afghanistan

43.12 ct Oval Rose Quartz, 24.1 x 19.6 mm From South Africa

0.69 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 5.9 x 4.2 mm

50.32 ct Fancy Chrysocolla, 35.9 x 25.9 mm From Australia

23.73 ct Cushion Lapis Lazuli, 20 x 15.1 mm From Afghanistan

4.46 ct Pink Kunzite, 11.5 x 7.2 mm Cushion Cut From Afghanistan

2.26 ct White Moonstone, 9.1 x 7 mm Oval Cut From India

6.8 ct Oval Star Ruby, 12.3 x 9.7 mm From Madagascar

14.19 carat Round Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 16 mm

3.23 ct Loose Oval Opal, 13.3 x 9.7 mm From Australia

5.4 ct Asscher Cut Smoky Quartz, 10.4 x 10.3 mm From Brazil

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