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

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Gemstones A-Z

Buy Cushion Cut 8x6 mm Gems

1.03 ct Loose Purple Sapphire, 6.7 x 5.2 mm Cushion Cut From Tanzania

12.63 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 14.1 x 10.1 mm

2.77 carat Blue Sapphire, Princess-Cut loose Sapphire from Madagascar, Natural Gems, 2.7 x 2.6 mm

1.13 ct Green Sphene, 5.9 x 5.6 mm Oval Cut From Sri Lanka

24.46 ct Fancy Obsidian, 29.9 x 21.8 mm From Mexico

0.77 carat Oval Peridot, loose Certified Peridot from China, Natural Untreated Gem, 7 x 5 mm

11.17 ct Oval Serpentine, 17.7 x 12.9 mm From the United States

27.42 ct Cushion Obsidian, 29.8 x 21.9 mm From India

0.9 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gems, 6 x 4.2 mm

0.34 ct Loose Yellow Sapphire, 4.1 mm Round Cut From Tanzania

3.39 carat Yellow Citrine, Baguette Cut loose Citrine from Brazil, Natural Untreated Gem, 11.9 x 6.1 mm

7.68 ct Oval Tiger's Eye, 12.3 x 8.2 mm From Thailand

0.3 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 4 mm

0.36 ct Loose Orange Sapphire, 4.8 x 2.5 mm Marquise Cut From Tanzania

3.85 ct Yellow Apatite, 9.6 x 9.5 mm Asscher Cut From Madagascar

15.49 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 17.5 x 14.7 mm

7.98 ct Fancy Fire Agate, 17.2 x 10.8 mm From Mexico

1.69 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8 x 6 mm

4.52 ct Blue Star Sapphire, 6.9 x 5.1 mm Oval Cut From Thailand

2.46 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.3 x 7.3 mm

3.26 carat Pear Malachite, loose Certified Malachite from Madagascar, Natural Untreated Gem, 10.1 x 8.1 mm

2.32 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 10.4 x 7.8 mm

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

2.97 carat Blue Green Fluorite, Oval loose Fluorite from India, Natural Untreated Gem, 9.1 x 7.4 mm

0.24 ct Octagon Cut Iolite, 4.9 x 3 mm From Madagascar

2.48 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5.1 mm

2.21 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 8.2 x 8.1 mm

7.67 ct Green Agate, 19 x 9.7 mm Carved From India

3.7 ct Diamond Cut Andalusite, 3.6 mm From Brazil

11.99 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 22.3 x 12.8 mm

16.43 ct Oval Jasper, 19.9 x 15.1 mm From Indonesia

8.43 ct Fancy Fire Agate, 18.4 x 10.3 mm From Mexico

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