Calibrated 14 x 12 mm Cushion Shape Loose Natural Gemstones from G...

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 14 mm x 12 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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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

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Overall Rating -> 10

Todo muy bien en la compra ahora esperar recibir el pedido.

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Overall Rating -> 10

I love your selection of gems. My only complaing is I wish I could put in a page number to return to that page.When there are over 60 pages of gems it is hard to return to a page with a gem I am considering.

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Fine. All emails answered. Excellent service. Nice discount added for orders. Briefly, a very good experience.

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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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Had a problem ordering first time. Someone from Gem Select reached out to me and cleared problem and I made purchase.

Posted By Myrtle in February, 2024

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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

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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.

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Trustworthy site. I've had several good experiences with company. Products always have met my expectations. Thank you.

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Posted By Moonshot in December, 2023

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Overall Rating -> 10

was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

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Overall Rating -> 10

it was good

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I was pleased with the selection of gems, the ease of navigating, and the smooth checkout

Posted By JamesMichael781 in September, 2023

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Overall Rating -> 10

Purchasing from Gem Select was a pleasant and easy experience. The photos of the stones I was interested in were an accurate depiction of the stones I received. Ordering was easy and the items arrived within a week. Over all it was a very positive experience.

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Gemstones A-Z

Buy Cushion Cut 14x12 mm Gems

4.04 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 12.3 x 8.2 mm

3.97 ct Oval Concave Cut Smoky Quartz, 12 x 1.1 mm From Brazil

3.7 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 9 mm

0.34 ct Black Diamond, 2.7 x 2.5 mm Princess Cut From India

3.86 ct Pink Morganite, 12 x 9.1 mm Oval Cut From Afghanistan

6.46 ct Heart Chalcedony, 12.3 x 11.8 mm From Brazil

3.05 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.1 x 9.9 mm

28.91 carat Pear Hematite, loose Certified Hematite from Brazil, Natural Untreated Gem, 24 x 15.6 mm

1.46 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5 x 4.9 mm

1.63 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.9 x 5 mm

12.65 carat Black Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 15.7 x 13.3 mm

2.71 carat Sky Blue Topaz, loose Topaz from Brazil, Natural Gems, 9.8 x 5.1 mm

2.11 ct Red Coral, 10.5 x 5.2 mm Oval Cut From Australia

0.78 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 7.1 x 5.1 mm

2.61 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 8 x 6 mm

21.1 ct Trillion Jasper, 19.8 x 17.2 mm From Indonesia

5.96 carat Sky Blue Topaz, Emerald Cut loose Topaz from Brazil, Natural Gems, 9.2 x 7.1 mm

2.47 carat Blue Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 4.4 mm

0.59 ct Yellow Sphalerite, 4.8 mm Round Cut From Spain

2.21 ct Blue Apatite, 5.1 x 4.1 mm Oval Cut From Madagascar

4.77 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 9.1 x 7.1 mm

2.07 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5 mm

85.53 ct Oval Ruby-Zoisite, 38.2 x 30.3 mm From Tanzania

4.89 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14.2 x 10.2 mm

17.54 ct Cushion Chrysocolla, 23 x 18.1 mm From Australia

7.57 ct Asscher Cut Rose Quartz, 12.2 x 12.2 mm From South Africa

30.67 ct Octagon / Emerald Cut Lapis Lazuli, 25.4 x 15.1 mm From Afghanistan

0.75 carat Yellow Sphene, Pear Shape loose Sphene from Sri Lanka, Natural Untreated Gem, 7.8 x 4.9 mm

0.84 ct Oval Cut Peridot, 7.1 x 4.9 mm From China

1.53 carat Square Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 5 x 5 mm

1.05 ct Yellow Sphalerite, 5.9 mm Round Cut From Spain

3.66 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 11.5 x 9.2 mm

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