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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Overall Rating -> 10

I love the clear description of the certification options. It's very rare to see a gem site that offers a deep explanation of each institution that would certify the stone(s).

Posted By Oakcityceo in May, 2023

Source: Bizrate

Overall Rating -> 10

Great selection and excellent website.

Posted By JBW in October, 2023

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Overall Rating -> 10

Gem Select has gems at afffordable prices.

Posted By George in March, 2024

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Overall Rating -> 10

I purchase all of my stones from GemSelect! They're the best I've found for both selection and value.

Posted By Terry in June, 2023

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Overall Rating -> 9

My first purchase went well. I will purchase more gems in the future.

Posted By NoHalalAl in March, 2024

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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.

Posted By Dee in September, 2023

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Overall Rating -> 10

This is only the second time I have ordered from GemSelect. I am a prolific gemstone collector and I wish I had found this site sooner!

Posted By Beachcomber in September, 2023

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Overall Rating -> 10

Love the variety of stones, sizes and the prices

Posted By Dorita in March, 2024

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Overall Rating -> 10

The gem stone always has a great selection of beautiful stones. The calibrated stone fit my ring perfectly. Thank you gem select !

Posted By Jen in August, 2023

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Overall Rating -> 9

Gemselect is a good website with a great selection of loose gems for sale. The prices are fairly decent, with the only negative being the cut quality of the gems. This is my go to retailer for gemstones and will continue to be, given that the packages arrive in a timely manner.

Posted By Lunchies in April, 2024

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Overall Rating -> 10

Everything fine.

Posted By Hilario in December, 2023

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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

The website is easy to navigate and the images are incredible.

Posted By Lindsy in October, 2023

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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

Source: Bizrate

Overall Rating -> 10

Great website and information

Posted By Moonshot in December, 2023

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Gemstones A-Z

Buy Cushion Cut 14x12 mm Gems

0.71 ct Loose Yellow Sapphire, 3.8 x 3.7 mm Princess Cut From Tanzania

3.55 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gems, 11.9 x 6.2 mm

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

19.83 carat Trillion Labradorite, loose Certified from Madagascar, Natural Untreated Gem, 18.5 x 18.4 mm

0.46 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gem, 5.1 x 4 mm

0.84 carat Blue Sapphire, Marquise-Cut loose Sapphire from Madagascar, Natural Gem, 8.1 x 4.1 mm

0.8 ct Octagon Cut Color-Change Diaspore, 5.9 x 4.5 mm From Turkey

25.09 ct Black Spinel, 19.9 x 10.1 mm Baguette Rose Cut From Thailand

2.18 ct Blue Apatite, 5.8 x 4.7 mm Oval Cut From Madagascar

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

3.07 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gem, 9 x 9 mm

3.56 carat Square Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 7.1 x 7.1 mm

7.23 ct Oval Charoite, 17 x 9.3 mm From Russia

5.09 ct Round Cut Smoky Quartz, 11.8 mm From Brazil

0.92 ct Octagon Cut Color-Change Diaspore, 7.7 x 4.6 mm From Turkey

4.08 ct Blue Kyanite, 11 x 9 mm Oval Cut From Nepal

5.33 carat Swiss Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 8.9 x 8.8 mm

18.75 ct Carved Ruby-Zoisite, 16.4 x 15.5 mm From Tanzania

3.35 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

0.8 ct Oval Cut Peridot, 6.9 x 5 mm From China

5.73 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15.2 x 9.1 mm

6.74 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 15.7 x 10.5 mm

16.79 ct Round Checkerboard Labradorite, 16.3 mm From Madagascar

2.09 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 11.9 x 5.9 mm

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

4.49 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Sri Lanka, Natural Untreated Gems, 6.6 x 4.9 mm

1.26 ct Purple Spinel, 6.4 x 5.9 mm Cushion Cut From Tanzania

1.31 ct Marquise Cut Peridot, 8.1 x 4.1 mm From China

10.02 ct Cushion Pietersite, 23.5 x 10.7 mm From Namibia

2.16 carat Sky Blue Topaz, Round loose Topaz from Brazil, Natural Gems, 6.2 mm

1.53 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gems, 5.5 mm

3.98 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 7.2 mm

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