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 -> 8

purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

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Overall Rating -> 10

it was good

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Trustworthy site. I've had several good experiences with company. Products always have met my expectations. Thank you.

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Overall Rating -> 10

Very Good

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Overall Rating -> 10

Love the variety of stones, sizes and the prices

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Overall Rating -> 10

Fine. All emails answered. Excellent service. Nice discount added for orders. Briefly, a very good experience.

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Overall Rating -> 10

Found what I was looking for

Posted By Rian in June, 2023

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Overall Rating -> 10

I have used this site for sseveral years now. All has been great. I started collection gems from GemSelect for years and wanted to collect at least one of most stones. I loved Safers because the mols is a 9 + and they come in every color. This is the best place to buy gems for the assortment and price. Great place to learn about gems too. Sometimes the shipping is a little on the long side. But I would give them a 9.9 out of 10 !!

Posted By Steve in July, 2023

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Overall Rating -> 10

The gem stone always has a great selection of beautiful stones. The calibrated stone fit my ring perfectly. Thank you gem select !

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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

Convenient selection, arrival on time

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Overall Rating -> 10

My overall interaction with your website was pleasant, as always.

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Overall Rating -> 10

Always an easy experience using Gem select.

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Gemstones A-Z

Buy Round Shape 11 mm Gems

8.3 carat White Topaz, Square loose Topaz from Brazil, Natural Untreated Gems, 5.1 x 5 mm

1.71 carat Orange Zircon, Pear Shape loose Zircon from Tanzania, Natural Untreated Gem, 8.6 x 5.9 mm

1.33 ct Yellow Beryl, 8.3 x 6.2 mm Oval Cut From Madagascar

3.08 ct Yellow Quartz, 11.4 x 11.3 mm Carved From Brazil

0.52 ct Pink Morganite, 6.9 x 4.2 mm Oval Cut From Afghanistan

0.16 ct Blue Apatite, 3.4 mm Round Cut From Madagascar

2.19 ct Round Onyx, 5.6 mm From Sri Lanka

0.89 carat Green Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 7.2 x 5.1 mm

2.15 ct Loose Orange Moonstone, 9.2 x 7.2 mm Cushion Cut From India

0.42 ct Loose Yellow Sapphire, 5.2 x 3.2 mm Baguette Cut From Tanzania

1.4 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 19.9 x 3 mm

79.05 carat Pear Hematite, loose Certified Hematite from Brazil, Natural Untreated Gems, 24.7 x 17.3 mm

6.42 ct Oval Pietersite, 16.8 x 10.4 mm From Namibia

5.04 ct Oval Cat's Eye Opal, 13.5 x 9 mm From Madagascar

5.14 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gems, 8 x 5.1 mm

21.46 carat Pear Boulder Opal, loose Certified Boulder Opal from Australia, Natural Untreated Gem, 28.9 x 18.8 mm

24.9 ct Oval Cut Nuummite, 23.8 x 15 mm From India

2.82 ct Loose Trillion Cut Amethyst, 10 x 10 mm From Brazil

1.69 ct Blue Apatite, 5.1 x 4.2 mm Oval Cut From Madagascar

2.05 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 6 x 3.8 mm

1.58 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 5 mm

3.34 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 9.1 mm

1.81 ct Orange Coral, 10 x 5 mm Oval Cut From Australia

29.01 ct Oval Jasper, 29.2 x 14.5 mm From Indonesia

1.42 ct Baguette Cut Color-Change Diaspore, 9.2 x 4.8 mm From Turkey

1.14 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.6 x 5.5 mm

2.25 ct Loose Multicolor Mystic Quartz, 7.1 x 7 mm Trillion Concave Cut From Brazil

4.08 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gems, 8 x 5.1 mm

3.21 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.9 x 8.9 mm

2.35 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 9.8 x 8 mm

2.64 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10 x 9.9 mm

20.7 ct Marquise Coral, 30.6 x 14.6 mm From Mexico

Gemstone Information

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