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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Gemstones A-Z

Buy Cushion Cut 8x6 mm Gems

5.91 ct White Moonstone, 9.1 mm Round Cut From India

33.84 carat Pear Hematite, loose Certified Hematite from Brazil, Natural Untreated Gem, 24.8 x 16 mm

2.37 ct Yellow Apatite, 9.7 x 8 mm Oval Cut From Madagascar

19.68 ct Oval Obsidian, 31 x 16.8 mm From the United States

18.72 ct Oval Pietersite, 30.1 x 22.1 mm From Namibia

1.19 ct Yellow Sphene, 6.4 x 6.2 mm Oval Cut From Sri Lanka

2.51 ct Orange Sunstone, 8.3 x 6.3 mm Oval Cut From India

8.57 carat Swiss Blue Topaz, Carved Leaf loose Topaz from Brazil, Natural Gem, 18 x 12.3 mm

5.21 carat Yellow Citrine, Heart loose Citrine from Brazil, Natural Untreated Gems, 7 x 7 mm

18.85 ct Baguette Tiger's Eye, 20.1 x 15 mm From Thailand

0.47 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 5.3 x 4.1 mm

4.6 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.9 x 7.9 mm

8.11 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gems, 14 x 8 mm

3.7 ct Red Andesine Labradorite, 11.2 x 9.2 mm Oval Cut From Congo

2.61 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.3 x 6.9 mm

21.39 ct Loose Oval Bloodstone, 20.9 x 14.4 mm From Madagascar

16.13 carat Pear Jasper, loose Certified Jasper from Mexico, Natural Untreated Gem, 21.9 x 14.7 mm

22.71 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 23.1 x 21.5 mm

3.7 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 13.1 x 9.1 mm

59.96 ct Carved Ruby-Zoisite, 19.2 x 18.8 mm From Tanzania

35.35 carat Pear Jasper, loose Certified Jasper from Indonesia, Natural Untreated Gem, 33.1 x 28.1 mm

11.55 ct Loose Oval Agate, 14.3 x 13.1 mm From Indonesia

1.01 ct Square Cut Color-Change Diaspore, 5.7 x 5.2 mm From Turkey

5.93 carat Sky Blue Topaz, Emerald Cut loose Topaz from Brazil, Natural Gems, 9.2 x 7.2 mm

0.71 carat Yellow Citrine, Heart loose Citrine from Brazil, Natural Untreated Gem, 6.1 x 6 mm

0.9 ct Cushion Cut Color-Change Diaspore, 5.6 x 5.5 mm From Brazil

7.43 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18.2 x 8.9 mm

7.15 ct Octagon Cut Smoky Quartz, 11.8 x 11.8 mm From Brazil

0.57 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 5.2 x 3.9 mm

2.55 ct Round Rutile Quartz, 7.1 mm From India

58.72 ct Oval Jasper, 35.2 x 23.2 mm From Indonesia

6.48 ct Baguette Labradorite, 11.8 x 9.9 mm From Madagascar

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