Calibrated 12 x 8 mm Pear Shape Loose Natural Gemstones from GemSelect

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 Pear shapes, facet cut and cabochon gems available now in 12 x 8 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 usually 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 round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most 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 Pear Shape 12x8 mm Gems

12.54 ct Oval Bloodstone, 15.8 x 12.1 mm From Madagascar

23.68 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 20.2 x 15.2 mm

20.1 carat Blue Aquamarine, Oval loose Aquamarine from Madagascar, Natural Untreated Gem, 21.6 x 16.5 mm

1.25 ct Purple Spinel, 6.5 x 5.9 mm Cushion Cut From Tanzania

39 ct Oval Fossil Coral, 23.7 x 15.9 mm From Indonesia

2.31 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6.9 x 5 mm

0.47 carat Purple Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 6 x 4.8 mm

3.32 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4 x 4 mm

23.78 ct Fancy Chrysocolla, 22.8 x 22.6 mm From Australia

2.56 carat Pear Shape Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gems, 4.2 x 3.1 mm

15.02 ct Gray Jadeite, 20.8 x 13.6 mm Oval Cut From Myanmar

3.03 ct Round Onyx, 7.1 mm From Sri Lanka

7.53 ct Asscher Cut Rose Quartz, 12.4 x 12.3 mm From South Africa

0.9 carat Pink Tourmaline, Round Cabochon loose from Mozambique, Natural Untreated Gem, 5.8 mm

6.65 ct Oval Checkerboard Idocrase, 15 x 11.2 mm From the United States

2.73 carat Square Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 4.9 x 4.8 mm

24.07 ct Yellow Quartz, 21.7 x 18 mm Oval Cut From Brazil

1.34 ct Orange Sunstone, 8.3 x 6.2 mm Oval Cut From India

0.71 ct Round Buff Top Smoky Quartz, 6.1 mm From Brazil

0.4 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 6.2 x 4.1 mm

26.33 ct Oval Jasper, 20 x 15.2 mm From Indonesia

0.02 ct Loose Green Diamond, 1.9 mm Diamond Cut From India

2.51 ct Loose Marquise Labradorite, 12.2 x 6.2 mm From Madagascar

1.61 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gem, 8.2 x 6.2 mm

26.16 ct Yellow Quartz, 19 x 18.9 mm Cushion Checkerboard From Brazil

9.27 ct Fancy Pietersite, 24.3 x 11.8 mm From Namibia

6.34 ct Asscher Cut Rose Quartz, 10.7 x 10.7 mm From South Africa

1.22 carat London Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 10.2 x 5 mm

0.8 carat Diamond Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 3.1 mm

2.73 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 9.4 x 7.6 mm

87.19 ct Trillion Cut Rose Quartz, 32.9 x 27.6 mm From South Africa

1.29 ct Loose Red Tourmaline, 7.6 x 6 mm Oval Cabochon From Mozambique

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