Calibrated 8 mm Round 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 Round shapes, facet cut and cabochon gems available now in 8 mm diameter 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 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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the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

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I had a great time searching all the lovely stones. This is my first precious loose stone purchase for my own work. I chose sapphire, and found some lovely briolettes. I wanted 3, but this set of 4 was perfect. Everything was quick and easy, and I'm excited.

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Gemstones A-Z

Buy Round Shape 8 mm Gems

1.06 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 6 mm

7.97 ct Oval Quartz With Marcasite, 16.4 x 12.9 mm From Brazil

3.65 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 15 x 7.2 mm

44.07 ct Oval Tiger's Eye Matrix, 37 x 23.2 mm From Mexico

2.34 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5 mm

0.94 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 7.1 x 6.9 mm

1.83 carat Pink Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 7.2 mm

12.09 ct Round Cut Smoky Quartz, 16.5 mm From Brazil

2.18 carat Princess-Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 7.9 x 7.9 mm

8.78 ct Round Petal Cut Smoky Quartz, 12.5 mm From Brazil

2.85 ct Orange Sunstone, 8.1 x 6.2 mm Oval Cut From India

2.25 carat Round Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 5.2 mm

1.42 carat Pink Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 7.1 x 6 mm

0.46 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 4.9 x 3.9 mm

0.79 carat Green Sapphire, Heart loose Sapphire from Tanzania, Natural Gem, 5.7 x 5.6 mm

0.29 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 4 mm

0.51 ct Octagon Cut Peridot, 6.1 x 4 mm From China

1.98 carat Round Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 2.1 mm

0.56 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5 x 3.9 mm

3.72 ct Round Checkerboard Smoky Quartz, 7.9 mm From Brazil

3.13 carat Sky Blue Topaz, Emerald Cut loose Topaz from Cambodia, Natural Gem, 8.2 x 8.2 mm

1.96 ct White Moonstone, 7.4 mm Round Cut From India

2.06 ct Cushion Cut Peridot, 7.7 x 7.1 mm From Myanmar

2.89 ct Loose Baguette Labradorite, 8.8 x 7 mm From Madagascar

4.38 ct Orange Sunstone, 11.7 x 9.8 mm Oval Cut From India

2.27 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.2 mm

25.76 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 20.7 x 16.4 mm

1.51 ct Oval Strawberry Quartz, 8.1 x 6.2 mm From Russia

5.91 carat Swiss Blue Topaz, Carved Leaf loose Topaz from Brazil, Natural Gem, 11.9 x 10 mm

3.74 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 7.1 mm

1.28 ct Oval Chocolate Opal, 8.9 x 6.9 mm From Ethiopia

17.18 ct Heart Jasper, 20.3 x 13.9 mm From Indonesia

Gemstone Information

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