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

Super easy to do business for great products.

Posted By BoBBy in January, 2024

Source: Bizrate

Overall Rating -> 10

I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

Posted By ChiChi in January, 2024

Source: Bizrate

Overall Rating -> 10

Very good, very fast, everything as described.

Posted By B in October, 2023

Source: Bizrate

Overall Rating -> 10

I have started a small gem brokerage. I find stones to meet clients needs. Gemselect has helped me find what people what.

Posted By Pirates Bounty in April, 2024

Source: Bizrate

Overall Rating -> 9

GemSelect has a fantastic assortment of Semi-precious stones. I have not found any other web site with the variety you have.

Posted By RobDill in August, 2023

Source: Bizrate

Overall Rating -> 8

Many gems at reasonable pricing

Posted By Skittlebird in May, 2024

Source: Bizrate

Overall Rating -> 10

this was very easy im exited to get my order

Posted By Mr. in April, 2024

Source: Bizrate

Overall Rating -> 10

Very large selection of items and we used the stones to have several pieces of jewelry made for us.

Posted By Joe in January, 2024

Source: Bizrate

Overall Rating -> 10

Excellent site.

Posted By Boru in December, 2023

Source: Bizrate

Overall Rating -> 10

Had a problem ordering first time. Someone from Gem Select reached out to me and cleared problem and I made purchase.

Posted By Myrtle in February, 2024

Source: Bizrate

Overall Rating -> 10

Very easy. I have purchased a few times before and was satisfied each time. Thank you.

Posted By Ray in December, 2023

Source: Bizrate

Overall Rating -> 10

Love the variety of stones, sizes and the prices

Posted By Dorita in March, 2024

Source: Bizrate

Overall Rating -> 10

I was looking for ammolite for my husband. Other websites are not always clear about whether they have genuine ammolite or simulated ammolite. I have purchased from GemSelect before and trust that the stones are genuine. Finding the stones I want is easy, and I love all of the search filter options!

Posted By Ana in September, 2023

Source: Bizrate

Overall Rating -> 10

Easy and fast

Posted By Mark in February, 2024

Source: Bizrate

Overall Rating -> 10

Wonderful selection of gems to choose from. Have made many purchases and was only slightly disappointed once.

Posted By Teemo in February, 2024

Source: Bizrate

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Gemstones A-Z

Buy Round Shape 11 mm Gems

16.23 ct Loose Oval Lapis Lazuli, 15.5 x 11.6 mm From Afghanistan

1.08 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 9 x 7 mm

0.31 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.7 mm

10.43 ct Diamond Cut Smoky Quartz, 14.7 mm From Brazil

9.31 ct Carved Rose Quartz, 20.4 x 13.9 mm From Brazil

3.66 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 8.9 x 8.8 mm

3.99 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.5 x 4.6 mm

0.86 ct Octagon Cut Peridot, 7 x 5 mm From China

1.59 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 10.1 x 8.1 mm

2.04 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 20.3 x 3.7 mm

1.1 carat Heart Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gem, 6.7 x 5.8 mm

0.94 ct Square Cut Color-Change Diaspore, 5.2 x 5.2 mm From Turkey

1.61 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5.1 mm

27.98 ct Oval Obsidian, 31.7 x 19.6 mm From the United States

0.97 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 11.1 x 4.5 mm

0.06 ct Loose Blue Diamond, 2.3 mm Diamond Cut From India

4.11 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 12.1 x 8 mm

1.59 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 8 x 5.9 mm

0.39 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gem, 5.8 x 3.9 mm

0.95 carat Yellow Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 8.3 x 6.1 mm

1.46 carat Swiss Blue Topaz, Trillion-Cut loose Topaz from Brazil, Natural Gem, 6.8 x 6.7 mm

0.77 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 6.9 x 5.1 mm

23.64 carat Pear Howlite, loose Certified Howlite from the United States, Natural Untreated Gem, 27.4 x 19 mm

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

1.47 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5 x 4.9 mm

0.49 ct Loose Pink Sapphire, 4.2 mm Round Cabochon From Tanzania

5.14 ct Asscher Cut Rose Quartz, 8.6 x 8.5 mm From South Africa

2.85 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.1 mm

5.53 carat London Blue Topaz, Heart loose Topaz from Brazil, Natural Gem, 10 x 10 mm

12.45 ct Oval Buff Top Chalcedony, 14.1 x 10.2 mm From Brazil

0.6 ct Loose Orange Sapphire, 6.1 x 4.1 mm Oval Cut From Tanzania

26.56 ct Oval Rainbow Moonstone, 24.5 x 17.6 mm From the United States

Gemstone Information

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