Calibrated 6 x 6 mm Square Shape Loose Natural Gemstones from GemS...

Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated Square shapes, facet cut and cabochon gems available now in 6 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 Square Shape 6x6 mm Gems

17.46 ct Oval Rutile Quartz, 23.5 x 17.2 mm From India

2.6 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.2 x 10 mm

2.96 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10 x 9.9 mm

1.47 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 8 x 6.1 mm

46.99 carat Pear Bloodstone, loose Certified Bloodstone from Madagascar, Natural Untreated Gem, 39 x 25.7 mm

9.87 carat Black Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 13.9 x 11.6 mm

6.54 carat White Topaz, Oval loose Topaz from Brazil, Natural Untreated Gems, 10.1 x 8 mm

1.04 ct Loose Yellow Sapphire, 7.1 x 5 mm Oval Cut From Madagascar

2.84 carat Swiss Blue Topaz, Fancy-Cut loose Topaz from Brazil, Natural Gems, 10.1 x 4.9 mm

0.88 ct Oval Cut Color-Change Diaspore, 6.8 x 4.9 mm From Brazil

14.39 ct Cushion Jasper, 16.7 x 16.7 mm From Indonesia

4.67 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6 x 4.1 mm

7.3 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 14.1 x 10 mm

11.78 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 23.4 x 15.3 mm

23.79 ct Amethyst Geode Slice, 26.1 x 16.5 mm From Brazil

10.22 ct Yellow Quartz, 17.6 x 8.8 mm Octagon Cut From Brazil

22.8 carat Yellow Zircon, Oval loose Zircon from Cambodia, Natural Gem, 16.9 x 13.4 mm

0.84 carat Oval Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 8.9 x 7 mm

0.83 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Madagascar, Natural Untreated Gems, 4 x 4 mm

6.52 ct Round Rutile Quartz, 10 mm From India

0.79 carat Orange Hessonite Garnet, Pear Shape loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.9 x 5.2 mm

1.12 ct Oval Sillimanite Cat's Eye, 7.2 x 4.7 mm From Madagascar

33.43 carat Blue Aquamarine, Pear Shape loose Aquamarine from Madagascar, Natural Untreated Gem, 36.2 x 15.1 mm

16.24 ct Yellow Quartz, 15.2 x 15.2 mm Asscher Cut From Brazil

42.95 ct Fancy Jasper, 35.6 x 29.2 mm From Indonesia

14.62 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 17.4 x 13 mm

6.48 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 17.5 x 10.6 mm

0.48 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 5.8 x 4 mm

23.47 ct Oval Jasper, 30.6 x 18.3 mm From Indonesia

13.36 ct Emerald Cut Lapis Lazuli, 20.3 x 13.8 mm From Afghanistan

1.64 carat Oval Peridot, loose Certified Peridot from China, Natural Untreated Gems, 6.9 x 4.9 mm

0.82 ct Cushion Cut Color-Change Diaspore, 7.1 x 4.4 mm From Turkey

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