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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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!

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Overall Rating -> 10

After having looked at other purchasing sites, this is my first choice.

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Overall Rating -> 10

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

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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

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.

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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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the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

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Great selection

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Overall Rating -> 9

Everything was good but since I am still new I was surprised at how small the stones where.

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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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Wonderful selection of gems to choose from. Have made many purchases and was only slightly disappointed once.

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Overall Rating -> 10

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Gemstones A-Z

Buy Cushion Cut 14x12 mm Gems

0.97 carat Orange Hessonite Garnet, Pear Shape loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.9 x 5.7 mm

0.61 ct Loose Orange Sapphire, 6 x 3.8 mm Oval Cut From Tanzania

3.92 ct Round Cut Peridot, 5.8 mm From China

2.04 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 14.1 x 4.1 mm

4.42 carat White Topaz, Princess-Cut loose Topaz from Brazil, Natural Untreated Gem, 9.3 x 9.2 mm

0.6 ct Loose Round Pietersite, 5.1 mm From Namibia

2.01 carat Princess-Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 8.1 x 8.1 mm

3.05 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.4 x 10 mm

9 carat Black Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 13.2 x 10.6 mm

0.54 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.1 x 4 mm

25.87 ct Marquise Hematite, 28.3 x 12.7 mm From Brazil

2.39 carat Swiss Blue Zircon, Oval loose Zircon from Cambodia, Natural Gems, 4.9 x 4 mm

1.07 carat White Topaz, Oval loose Topaz from Brazil, Natural Untreated Gems, 6.3 x 4.2 mm

0.49 ct Loose Yellow Sapphire, 4.9 x 4 mm Octagon Cut From Tanzania

4.08 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7.1 x 5.2 mm

3.24 carat Yellow Citrine, Round loose Citrine from Brazil, Natural Untreated Gems, 8.2 mm

0.61 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 5.1 mm

1.86 ct Oval Cut Fire Opal, 10.4 x 7.7 mm From Mexico

0.94 ct Cushion Cut Smoky Quartz, 6.1 x 6 mm From Brazil

0.39 ct Square Cut Kornerupine, 4.3 x 4.3 mm From Sri Lanka

3.12 ct Asscher Cut Rose Quartz, 9.2 x 9.2 mm From South Africa

1.33 ct Oval Cut Peridot, 8 x 5.9 mm From China

7.33 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 15.7 mm

4.87 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15.1 x 9.9 mm

0.72 ct Pink Morganite, 7.8 x 5.4 mm Oval Cut From Afghanistan

3.17 ct Green Agate, 16.4 x 8.9 mm Carved From India

1.97 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.5 x 6.9 mm

8 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 15.3 mm

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

0.64 ct Loose Yellow Sapphire, 3.6 x 3.6 mm Princess Cut From Tanzania

1.24 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 7.1 x 5.2 mm

13.74 ct Oval Quartz With Hedenbergite, 16.8 x 14.1 mm From Russia

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