Calibrated 8 x 6 mm Cushion Shape Loose Natural Gemstones from Gem...

Some people by gems by color or price, but for many, it is best to buy gems by size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated cushion shapes, facet cut and cabochon gems available now in 8 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

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

Posted By MI photo in May, 2023

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Overall Rating -> 10

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

Posted By RJ in April, 2024

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Overall Rating -> 10

Great site

Posted By Lord of Bananas in November, 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 -> 9

Never bought anything on this website before, but it probably won't be my last purchase. Definitely one of the easiest to use and most informative sites I've ever been to.

Posted By Bob in November, 2023

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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

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

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Overall Rating -> 9

Easy to use. Limited supply of higher quality gemstones.

Posted By Newfguy in February, 2024

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Overall Rating -> 10

It was easy to find the color gem I desired and checkout was simple as well. Very excited to receive my gemstone.

Posted By Nikki J in September, 2023

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Overall Rating -> 9

It went well

Posted By Rob in December, 2023

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Overall Rating -> 10

The website is user friendly, has excellent selection. I've always found what I was looking for with Gem Select. When others don't have it they do. And most important, they have a way for you to pay without using PayPal. I cannot use PayPal they closed my account because of no cell phone.

Posted By NJD in September, 2023

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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

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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

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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

Posted By Jf in January, 2024

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Overall Rating -> 10

this was very easy im exited to get my order

Posted By Mr. in April, 2024

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Gemstones A-Z

Buy Cushion Cut 8x6 mm Gems

1.09 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.2 x 4.2 mm

2.34 ct Oval Cat's Eye Scapolite, 10.6 x 8.1 mm From Madagascar

1.7 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 12.3 x 4.1 mm

1.27 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 11.1 x 7.6 mm

10.98 ct Yellow Quartz, 15.1 x 12.1 mm Oval Cut From Brazil

0.59 carat Yellow Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 5.8 x 4 mm

16.75 ct Fancy Fossil Coral, 20.8 x 10.6 mm From Indonesia

0.83 carat Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7.1 x 5.2 mm

4.13 carat White Topaz, Square loose Topaz from Brazil, Natural Untreated Gems, 4 x 3.9 mm

5.9 ct Marquise Concave Cut Smoky Quartz, 18.1 x 7.1 mm From Brazil

9.27 ct Baguette Rainbow Moonstone, 18.3 x 9.3 mm From the United States

1.08 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 7.6 x 4.5 mm

1.47 carat Green Sapphire, Oval loose Sapphire from Tanzania, Natural Gems, 5.9 x 4.9 mm

0.72 ct Octagon Cut Color-Change Diaspore, 6.9 x 3.6 mm From Turkey

0.58 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 5 mm

1.36 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6 mm

1.94 ct Brown Cat's Eye Apatite, 8.4 x 6.2 mm Oval Cut From Kenya

4.68 ct Pink Morganite, 11.8 x 9.9 mm Oval Cut From Afghanistan

2.96 carat Emerald Cut Emerald, loose Certified Emerald from Zambia, Natural Gem, 9.4 x 7.7 mm

0.55 ct Purple Spinel, 5.4 x 4.3 mm Cushion Cut From Tanzania

4.58 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 14 x 9.8 mm

16.95 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 26.2 x 14.6 mm

10.24 carat Pear Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gem, 17.1 x 12.7 mm

1.42 carat Sky Blue Topaz, loose Topaz from Brazil, Natural Gem, 9.8 x 5 mm

1.64 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 9.3 x 5.1 mm

1.09 ct Loose Yellow Sapphire, 4.8 mm Round Cut From Tanzania

19.66 ct Oval Rose Quartz, 18 x 15.6 mm From South Africa

7.99 ct Drilled Square Rondelle Labradorite, 5.3 x 5.2 mm From Madagascar

1.79 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.1 x 7 mm

0.93 carat Orange Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gems, 8.2 x 4.1 mm

7.73 carat White Topaz, Square loose Topaz from Brazil, Natural Untreated Gems, 5.2 x 5.1 mm

1.09 ct Blue Kyanite, 6.1 mm Round Cut From Nepal

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