Calibrated Cushion Shape Gemstones 10x8 mm size from GemSelect

Some people by gems by color or prize, 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 10 mm x 8 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

all good

Posted By John in December, 2023

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Overall Rating -> 10

The website is easy to navigate and has a great selection. I am an amateur silver smith casting jewelry with stones

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Overall Rating -> 10

The gems were as described, which is kind of rare these days. I am happy with the purchase, and delevery on time.

Posted By T-bone in October, 2023

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Overall Rating -> 10

I have used this site for sseveral years now. All has been great. I started collection gems from GemSelect for years and wanted to collect at least one of most stones. I loved Safers because the mols is a 9 + and they come in every color. This is the best place to buy gems for the assortment and price. Great place to learn about gems too. Sometimes the shipping is a little on the long side. But I would give them a 9.9 out of 10 !!

Posted By Steve in July, 2023

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Overall Rating -> 10

this was very easy im exited to get my order

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Super easy to do business for great products.

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Overall Rating -> 9

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

Posted By Steve in August, 2023

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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

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Overall Rating -> 10

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023

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Overall Rating -> 10

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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

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Overall Rating -> 10

Very Good

Posted By Julian in July, 2023

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Gemstones A-Z

Buy Cushion Shape 10x8 mm Gems

2.05 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Madagascar, Natural Untreated Gems, 4.1 x 4.1 mm

3.47 carat Pink Topaz, Round loose Topaz from Brazil, Natural Gem, 9.1 mm

0.34 carat Pink Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6.1 x 4.1 mm

1.68 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gems, 8.9 x 6.9 mm

1.15 ct Blue Kyanite, 7.2 x 5.2 mm Oval Cut From Nepal

0.57 carat Orange Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6 x 4.1 mm

3.11 ct Round Checkerboard Smoky Quartz, 7.9 mm From Brazil

1.73 ct Green Apatite, 7.9 x 6.1 mm Oval Cut From Madagascar

45.7 ct Oval Jasper, 35.3 x 26 mm From Indonesia

0.73 ct Loose Round Cut Lapis Lazuli, 6 mm From Afghanistan

8.56 ct Carved Prehnite, 15.1 x 11.8 mm From South Africa

1.6 ct Oval Cut Strawberry Quartz, 9.1 x 7.1 mm From Russia

8.92 ct Blue Green Grandidierite, 15 x 10.8 mm Oval Cut From Madagascar

0.5 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 4.9 mm

3.84 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7.1 x 5.1 mm

25.72 carat Pear Shape Opal, loose Certified Opal from Australia, Natural Untreated Gem, 27.3 x 25.1 mm

21.87 ct Oval Fossil Coral, 20.7 x 11.9 mm From Indonesia

2.38 ct Green Agate, 17.5 x 8.7 mm Carved From India

0.78 carat Oval Peridot, loose Certified Peridot from China, Natural Untreated Gem, 7 x 5.1 mm

1.33 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 12.6 x 3.7 mm

2.82 ct Round Cut Peridot, 5 mm From China

26.29 ct Pencil Cut Jasper, 39.9 x 9.7 mm From Indonesia

15.77 ct Yellow Quartz, 16.2 x 13.5 mm Oval Cut From Brazil

2.19 ct Oval Strawberry Quartz, 9.1 x 7.2 mm From Russia

3.67 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 15.2 x 7.3 mm

1.08 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 15.7 x 3.3 mm

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

0.49 ct Loose Purple Sapphire, 5.5 x 4.6 mm Oval Cut From Tanzania

7.8 ct Purple Kunzite, 15.4 x 8.7 mm Oval Cut From Afghanistan

2.16 carat Orange Zircon, Oval loose Zircon from Tanzania, Natural Untreated Gem, 8 x 6.1 mm

8.65 carat Swiss Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 10.1 x 10 mm

2.65 ct Round Cut Strawberry Quartz, 7.1 mm From Russia

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