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

0.84 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 5.8 x 4.1 mm

3.89 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 13.9 x 9.8 mm

2.6 ct Oval Prehnite, 6.6 x 5.2 mm From South Africa

2.48 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 10 x 5 mm

6.22 ct White Moonstone, 9 mm Round Cut From India

1.38 carat Green Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 8 x 6 mm

2.1 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8.7 x 7.2 mm

2.66 carat Trillion Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 5.2 x 5.1 mm

2.56 ct Orange Moonstone, 7.3 x 7.2 mm Square Cut From India

1.39 carat Square Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 4.9 x 4.9 mm

44.23 ct Loose Pencil Cut Rainbow Moonstone, 42.2 x 11.6 mm From the United States

1.4 ct Loose White Sapphire, 2.7 x 2.7 mm Princess Cut From Madagascar

1.4 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6 x 6 mm

0.47 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 4.3 x 4.3 mm

6.53 carat Carved Heart Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 14.2 x 11.7 mm

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

11.93 carat Green Opal, Oval loose Opal from Brazil, Natural Untreated Gem, 19.1 x 14.9 mm

1.32 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.3 x 5.9 mm

5.08 ct Carved Prehnite, 15.4 x 9.8 mm From South Africa

0.81 ct Square Cut Color-Change Diaspore, 5.3 x 5.3 mm From Turkey

0.82 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 6.5 x 4.9 mm

22.69 ct Loose Purple Lepidolite, 35.9 x 8.9 mm Pencil Cut From the United States

0.36 carat Round Cabochon Emerald, loose Certified Emerald from Colombia, Natural Gem, 4.2 mm

0.56 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.1 x 4.1 mm

1.6 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.1 x 4.2 mm

0.61 carat Yellow Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6 x 4.1 mm

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

1.47 ct Green Sphene, 6.9 x 6.1 mm Oval Cut From Sri Lanka

4.71 carat Sky Blue Topaz, Emerald Cut loose Topaz from Brazil, Natural Gems, 7.1 x 5.1 mm

9.27 ct Baguette Rainbow Moonstone, 18.3 x 9.3 mm From the United States

0.78 ct Loose White Sapphire, 4.3 mm Diamond Cut From Madagascar

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

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