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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Overall Rating -> 10

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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Overall Rating -> 10

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Overall Rating -> 10

I bought a small ring green so I may practice my jewelry making.

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Overall Rating -> 10

Very Good

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Overall Rating -> 10

i love this site, the gems are always of good quality, i've been buy gifts from the site for 10 years, love it

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Overall Rating -> 7

I placed order#384714 based on the picture on your website and the stone came in much darker. I'm sure it's the same stone i ordered but your lighting made it seem a lighter blue. I was trying to match a stone for a customer and based on the picture it would have been close enough but the stone in person is a mile off.

Posted By Bobk in February, 2024

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Overall Rating -> 10

After having looked at other purchasing sites, this is my first choice.

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Overall Rating -> 10

Excellent site.

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Overall Rating -> 10

I was pleased with the selection of gems, the ease of navigating, and the smooth checkout

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Overall Rating -> 10

Purchased for my granddaughter she was very pleased with it.

Posted By Charlie in April, 2024

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Overall Rating -> 10

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Gemstones A-Z

Buy Round Shape 11 mm Gems

1.98 carat Round Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 8 mm

0.65 carat Purple Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 6.6 x 4.5 mm

0.52 ct Yellow Beryl, 6.8 x 5 mm Oval Cut From Madagascar

2.12 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

0.19 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm

40.68 carat Blue Sodalite, Pear loose Sodalite from Australia, Natural Untreated Gem, 37.6 x 28.8 mm

9.29 ct Yellow Quartz, 15 x 14.7 mm Carved From Brazil

4.67 ct Yellow Agate, 11.8 x 9.4 mm Oval Cut From India

29.1 ct Pencil Cut Jasper, 38.8 x 9.6 mm From Indonesia

8.63 ct Black Spinel, 10.2 mm Round Rose Cut From Thailand

0.82 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gems, 6 x 4.1 mm

7.57 ct Octagon Cut Rose Quartz, 11.5 x 11.4 mm From South Africa

20.55 carat Pear Boulder Opal, loose Certified Boulder Opal from Australia, Natural Untreated Gem, 31.9 x 16.1 mm

1.34 ct Orange Sunstone, 8.3 x 6.2 mm Oval Cut From India

5.71 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14.1 x 10.1 mm

1.64 ct Round Cut Andalusite, 3.8 mm From Brazil

51.51 ct Cushion Variscite, 33.9 x 29.9 mm From Australia

2.34 ct Yellow Cat's Eye Apatite, 7.9 x 7.2 mm Oval Cut From Kenya

1.08 carat Cushion Buff Top Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 5.2 x 5.2 mm

2.05 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 5.6 x 3.7 mm

17.4 ct Oval Cat's Eye Aquamarine, 19.9 x 11.5 mm From Madagascar

2.17 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 10.3 x 8.4 mm

19.93 ct White Jadeite, 21.9 x 18 mm Oval Cut From Myanmar

8.93 carat Black Tourmaline, Emerald Cut loose Tourmaline from Tanzania, Natural Untreated Gem, 14.1 x 10.4 mm

1.71 ct Oval Cut Peridot, 7.1 x 5.1 mm From China

14.17 ct Green Aventurine, 17.3 x 10 mm Baguette Cut From Brazil

2.93 ct Round Onyx, 7 mm From Sri Lanka

1.49 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gems, 6.2 x 5.2 mm

1.19 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 7.4 x 5.3 mm

2.32 ct Loose Yellow Sapphire, 4.9 mm Round Cut From Tanzania

2.07 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 7.9 x 6.1 mm

0.95 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 5 mm

Gemstone Information

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