Calibrated 11 x 11 mm Trillion Shape Loose Natural Gemstones from ...

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 Trillion shapes, facet cut and cabochon gems available now in 11 mm x 11 mm 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 meant nor 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

The website is well organized and works fast forward and back. Plenty of filters. Each gem is described in detail and you receive the one pictured. Gem material info and sources available. I would like to see more specifics on sources besides country- at least region or state and in the US with Turquiose which mine. Thanks!

Posted By Orchidisle in February, 2024

Source: Bizrate

Overall Rating -> 8

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

Posted By MI photo in May, 2023

Source: Bizrate

Overall Rating -> 9

It was simple and clear to understand.

Posted By Thora007 in December, 2023

Source: Bizrate

Overall Rating -> 10

My only complaint is that there are so many beautiful and affordable stones that I get distracted from what I planned to order.

Posted By Phoenix in March, 2024

Source: Bizrate

Overall Rating -> 10

The site is very easy to use and I will continue to shop here. The quality is superb

Posted By Genia in January, 2024

Source: Bizrate

Overall Rating -> 9

Overall good, shipping prices just seem a little on the high side.

Posted By Steve in August, 2023

Source: Bizrate

Overall Rating -> 10

Great Job today! No issues!

Posted By Samlovesgems777 in August, 2023

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 10

I found it to be easy to browse and easy to use

Posted By Kyle in December, 2023

Source: Bizrate

Overall Rating -> 10

Was easy to search for many gems and mineral stones.Authenticity of natural stones is important, and I feel this site offers some assurance on this.

Posted By DanM in November, 2023

Source: Bizrate

Overall Rating -> 10

Great selection of various gems, easy to navigate site

Posted By Josh in August, 2023

Source: Bizrate

Overall Rating -> 10

Excellent site.

Posted By Boru in December, 2023

Source: Bizrate

Overall Rating -> 9

So many gorgeous stones! The only "complaint" I have is it's difficult to visualize sizes in mm. Perhaps some way to compare in inches?It has been a long time since I bought stones from Gem select, but the process wasn't too difficult.

Posted By Ktreva52 in February, 2024

Source: Bizrate

Overall Rating -> 9

My first purchase went well. I will purchase more gems in the future.

Posted By NoHalalAl in March, 2024

Source: Bizrate

Overall Rating -> 9

The selection and filtering is a little overwhelming, but that's only because there is so much to choose from.

Posted By Kasper in June, 2023

Source: Bizrate

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Gemstones A-Z

Buy Trillion Shape 11x11 mm Gems

7.83 ct Pink Moonstone, 11.7 x 11.6 mm Carved From India

0.67 carat London Blue Topaz, Square loose Topaz from Brazil, Natural Gem, 5 x 4.9 mm

4.53 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.7 x 9.4 mm

1.65 ct Oval Cat's Eye Moonstone, 6.8 x 5 mm From India

13.64 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 22 x 15.5 mm

64.36 ct Yellow Quartz, 28.5 x 23.5 mm Oval Concave Cut From Brazil

12.25 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 15.8 x 11.8 mm

1.24 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 15.5 x 3 mm

0.95 carat Purple Tourmaline, Oval loose from Mozambique, Natural Untreated Gem, 6.6 x 5 mm

0.75 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 5.2 x 5.2 mm

8.93 ct Square Ruby-Zoisite, 10.6 x 10.4 mm From Tanzania

11.36 ct Pencil Cut Tiger's Eye, 23 x 8.2 mm From Thailand

2 carat Pear Tiger's Eye, loose Certified Tiger's Eye from Thailand, Natural Untreated Gem, 8.1 x 7.9 mm

8.9 ct Octagon Cut Smoky Quartz, 12.5 x 12.5 mm From Brazil

0.45 ct Loose Orange Sapphire, 5.9 x 4.1 mm Oval Cut From Tanzania

3.92 ct Round Checkerboard Smoky Quartz, 7.9 mm From Brazil

8.11 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gems, 14.1 x 8.1 mm

12.56 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 15 x 9.2 mm

0.52 ct Loose Violet Sapphire, 5.5 x 4.5 mm Oval Cut From Tanzania

0.87 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gems, 6.2 x 4.1 mm

8.06 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gems, 13.8 x 8.1 mm

4.93 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12 x 9.9 mm

2.05 carat Carved Leaf Ruby, loose Certified Ruby from Madagascar, Natural Gem, 14.6 x 8 mm

1.92 ct Oval Cut Rainbow Moonstone, 9.2 x 7.1 mm From the United States

4.09 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6 x 4.1 mm

0.3 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 4 mm

5.19 carat Barrel Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 9.1 x 4.5 mm

1.34 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 18.7 x 3.1 mm

3.33 ct Diamond Cut Andalusite, 3.5 mm From Brazil

9.69 ct Round Pietersite, 13.6 mm From Namibia

8.43 carat Swiss Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 9.9 x 10 mm

0.42 ct Loose Orange Sapphire, 4.9 x 2.6 mm Marquise Cut From Tanzania

Gemstone Information

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Gemstone EDUCATION

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