Calibrated 6 x 6 mm Trillion Shape Loose Natural Gemstones from Ge...

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 6 mm x 6 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 -> 8

I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

Posted By Mark in March, 2024

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Overall Rating -> 10

Interested in unusual stones and found many that I purchased or will purchase in the near future. I have been a customer of gem select for almost ten years and have always been pleased with buying experience and the delivered product

Posted By Fairhope Pete in December, 2023

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Overall Rating -> 10

It was easy to navigate and I hope that the gem is as nice as the picture

Posted By 1 in April, 2024

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Overall Rating -> 10

I FOUND WHAT I WANT IT

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Overall Rating -> 9

Well presented images, clear information, quick and easy check out.

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Overall Rating -> 9

An it was good.

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Overall Rating -> 10

Great website and information

Posted By Moonshot in December, 2023

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Overall Rating -> 9

I was in the market for birthstones for a lil gift project im doing. I'm no expert in gems or what not but the quality as far as i can tell seems to be spot on.

Posted By PixelComposer in January, 2024

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Overall Rating -> 10

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

Posted By MJC in January, 2024

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Overall Rating -> 10

Everything fine.

Posted By Hilario in December, 2023

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Overall Rating -> 10

I had a great time searching all the lovely stones. This is my first precious loose stone purchase for my own work. I chose sapphire, and found some lovely briolettes. I wanted 3, but this set of 4 was perfect. Everything was quick and easy, and I'm excited.

Posted By Phoenix in February, 2024

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Overall Rating -> 8

Found on a search engine. Scanned inventory and made a small purchase.

Posted By Ralli in August, 2023

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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

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Overall Rating -> 10

The website is easy to search, the variety of gems is excellent and the educational information is interesting and helpful! Love browsing and shopping the GemSelect website!

Posted By Happiness in January, 2024

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Overall Rating -> 10

I am excited for my first order, search tools were a great help to find the sapphire I needed for my next project! Thank you

Posted By Sue in April, 2023

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Gemstones A-Z

Buy Trillion Shape 6x6 mm Gems

0.56 carat Violet Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 5.9 x 5.1 mm

0.91 carat Orange Hessonite Garnet, Square loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 5 x 5 mm

0.44 ct Loose Orange Sapphire, 5.9 x 3.9 mm Oval Cut From Tanzania

1.8 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 8 x 6.1 mm

3.96 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 14.4 mm

1.18 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gems, 7.1 x 5.2 mm

17.11 ct Oval Bloodstone, 16.6 x 13.1 mm From Madagascar

1.97 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 7.5 x 7.3 mm

6.9 carat Brown Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 12.9 x 10.1 mm

7.89 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 11.9 x 9.9 mm

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

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

2.24 carat Red Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 8 mm

7.17 ct Green Agate, 12.6 x 11.9 mm Oval Cut From India

2.94 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.1 x 4.2 mm

5.13 ct Blue Star Sapphire, 7 x 5.1 mm Oval Cut From Thailand

1.67 carat Yellow Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gems, 7.9 x 5 mm

2.89 ct Brown Cat's Eye Apatite, 8.8 x 6.7 mm Oval Cut From Kenya

6.68 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.1 x 4.1 mm

9.19 ct Yellow Quartz, 18 x 13.1 mm Carved From Brazil

3.54 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Tanzania, Natural Untreated Gems, 5.2 x 3.1 mm

0.88 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 9.3 x 3.8 mm

2.25 ct Round Cut Strawberry Quartz, 7.1 mm From Russia

34.94 ct Oval Rose Quartz, 24.3 x 16.9 mm From South Africa

2.82 ct Pink Morganite, 9 mm Round Cut From Afghanistan

2.27 ct Yellow Apatite, 8.1 x 7.9 mm Asscher Cut From Madagascar

0.64 ct Loose Purple Sapphire, 6.2 x 4.5 mm Oval Cut From Tanzania

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

3.97 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.1 x 4.1 mm

1.7 carat Pink Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 7.4 x 6.6 mm

3.21 ct Pink Coral, 13.6 x 9.9 mm Carved From Australia

2.53 ct Orange Sunstone, 8.9 mm Round Cut From India

Gemstone Information

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