Calibrated 10 x 10 mm Heart Shape Loose Natural Gemstones from Gem...

Some people by gems by color or prize, 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 Heart shapes, facet cut and cabochon gems available now in 10 mm x 10 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 Heart Shape 10x10 mm Gems

4.57 ct Trillion Pietersite, 14.4 x 12.6 mm From Namibia

1.06 ct Yellow Moonstone, 6.2 x 6.1 mm Square Cut From India

0.8 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7 x 4.9 mm

73.93 ct Oval Ruby-Zoisite, 37.5 x 25.7 mm From Tanzania

2.3 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5.2 mm

1.08 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gem, 7.1 x 5.2 mm

4.52 ct Yellow Quartz, 12.7 x 9.9 mm Carved From Brazil

22.58 ct Loose Blue Green Turquoise, 26.5 x 15.2 mm Oval Cut From the United States

0.31 ct Black Diamond, 2.7 x 2.5 mm Princess Cut From India

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

7.09 carat Green Agate, Pear loose Agate from India, Natural Gem, 14.1 x 11.8 mm

13.36 carat Pear Obsidian, loose Certified Obsidian from the United States, Natural Untreated Gem, 27 x 18.2 mm

7.96 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 15.4 x 11.4 mm

1.66 carat White Topaz, Emerald Cut loose Topaz from Brazil, Natural Untreated Gems, 5 x 4.9 mm

16.4 ct Oval Jasper, 20.1 x 15.2 mm From India

1.71 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6.1 x 6.1 mm

1.73 ct Round Cut Strawberry Quartz, 8 mm From Russia

37.31 ct Baguette Tiger's Eye Matrix, 28.2 x 24.2 mm From Mexico

1.15 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 9 x 7.1 mm

10.47 ct Brown Moonstone, 13.5 x 13.3 mm Carved From India

31.24 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 23.6 x 19.2 mm

2.35 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 9.1 x 7.5 mm

2.04 ct Cushion Cut Peridot, 8.9 x 6.5 mm From Myanmar

15.79 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 14.2 x 10.1 mm

2.96 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.3 x 9.9 mm

3.03 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Tanzania, Natural Untreated Gem, 10.2 x 6.3 mm

1.64 ct Blue Kyanite, 7 x 5 mm Oval Cut From Nepal

5.33 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 9.8 x 7.9 mm

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

3.27 carat Yellow Citrine, Carved Flower loose Citrine from Brazil, Natural Untreated Gem, 9.8 x 9.2 mm

3.9 ct Oval Cut Rainbow Moonstone, 8.9 x 6.8 mm From the United States

7.78 carat Blue Green Tourmaline, Carved Flower loose Tourmaline from Mozambique, Natural Untreated Gem, 11.5 mm

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