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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I bought a small ring green so I may practice my jewelry making.

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over the experience was similar to other sites i have used. The only real note I have is the checkout experience was tedious and discriminatory, i wouldn't accept visa gift cards, which not only have guaranteed funds but help protect from misuse of personal information, but would not accept my visa b/c it is a prepaid card. I don't have bank account and I have been using the prepaid card for years without issue so this was disappointing to me. I feel safer using reputable gem sites rather than amazon or ebay (I have been sold fake gems with fake certs on both), but not being able to use my own valid legitimate funds and having to find a friend to buy for me b/c I use a non-bank card like 40% of the country is insulting.

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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

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Overall Rating -> 9

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

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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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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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I have used GemSelect for several years and plan to shop more in the further. This is a good source of information on gemstones. I love looking at and learning about them. Lot more than I ever knew existed.

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Fantastic dealer for quality gemstones. Website is easy to navigate, selection is superb, delivery of purchases is prompt. Easy to select incorrect payment options, however.

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Gemstones A-Z

Buy Cushion Cut 8x6 mm Gems

18.77 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 28.5 x 15.7 mm

2.69 ct White Moonstone, 9.9 x 8.1 mm Oval Cut From India

3.62 carat Swiss Blue Topaz, Emerald-Cut loose Topaz from Brazil, Natural Gems, 8.2 x 6.2 mm

1.64 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.8 x 6.3 mm

7.43 ct Oval Boulder Opal, 23.9 x 8 mm From Australia

29.2 ct Oval Cut Rose Quartz, 28.5 x 16.3 mm From South Africa

0.34 ct Loose Yellow Sapphire, 4.8 x 3.1 mm Octagon Cut From Tanzania

10.31 ct Cushion Labradorite, 18.2 x 8.3 mm From Madagascar

1.43 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.9 x 5.1 mm

3.55 ct Red Andesine Labradorite, 11.1 x 9.1 mm Oval Cut From Congo

48.67 ct Oval Jasper, 29.3 x 23.5 mm From Indonesia

0.78 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 7.1 x 5.2 mm

1.91 ct Orange Sunstone, 8.6 mm Round Cut From India

0.31 carat Pear Shape Kornerupine, loose Certified Kornerupine from Sri Lanka, Natural Untreated Gem, 5.4 x 3.6 mm

3.08 carat Carved Leaf Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 13.7 x 8.1 mm

16.92 ct Green Aventurine, 20.2 x 11 mm Odd Shaped From Brazil

6.72 ct Oval Malachite, 12.1 x 9.9 mm From Congo

20.58 ct Oval Pietersite, 29.9 x 22.1 mm From Namibia

6.93 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gems, 11.8 x 10.1 mm

14.76 ct Green Aventurine, 17 x 10 mm Baguette Cut From Brazil

1.53 ct Green Sphene, 6.8 x 6.2 mm Oval Cut From Sri Lanka

4.07 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.2 x 4 mm

3.08 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 9.6 x 7.8 mm

0.16 ct Oval Cut Iolite, 4.6 x 2.9 mm From Madagascar

0.15 ct Marquise Cut Iolite, 6.2 x 3 mm From Madagascar

6.65 ct Cushion Cut Color-Change Diaspore, 11.7 x 9.8 mm From Turkey

4.15 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 13.5 x 9.8 mm

3.34 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 6.9 mm

1.68 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 8.1 x 6.1 mm

3.23 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 10.9 x 8.9 mm

2.18 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 9.2 x 6.3 mm

3.04 ct Round Cut Strawberry Quartz, 9.1 mm From Russia

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