Calibrated 9 x 7 mm Octagon / Emerald-Cut Natural Gemstones: 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 Octagon shape / Emerald-Cut, faceted and cabochon gems available now in 9 x 7 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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Was easy to search for many gems and mineral stones.Authenticity of natural stones is important, and I feel this site offers some assurance on this.

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I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

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Overall Rating -> 8

I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

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The gem stone always has a great selection of beautiful stones. The calibrated stone fit my ring perfectly. Thank you gem select !

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Gemstones A-Z

Buy Octagon Shape 9x7 mm Gems

0.4 carat Violet Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gem, 6.2 x 4.1 mm

61.2 ct Odd Shaped Nuummite, 44.1 x 31.2 mm From India

2.25 ct Round Cut Andalusite, 4 mm From Brazil

15.83 ct Loose Pear Cut Amethyst, 21.2 x 15.5 mm From Brazil

11.68 ct Baguette Rainbow Moonstone, 19 x 10.8 mm From the United States

1.46 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 7.1 x 5.2 mm

14.38 ct Oval Cat's Eye Opal, 17.2 x 13 mm From Madagascar

2.47 ct Oval Sillimanite Cat's Eye, 7.3 x 4.9 mm From Madagascar

2.56 ct Loose Orange Sapphire, 4.9 mm Round Cut From Tanzania

0.64 carat Green Sapphire, Cushion loose Sapphire from Tanzania, Natural Gem, 4.5 x 4.4 mm

15.8 ct Baguette Seraphinite, 13.9 x 10 mm From Russia

25.93 ct Oval Rainbow Moonstone, 21.8 x 10.4 mm From the United States

2.85 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.1 x 10 mm

1.41 carat Orange Hessonite Garnet, Square loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6 x 6 mm

2.19 ct Oval Cut Fire Opal, 9.9 x 7.4 mm From Mexico

7.61 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 11.2 x 9.1 mm

0.65 ct Loose Yellow Sapphire, 3.5 x 3.5 mm Princess Cut From Tanzania

43.57 ct Oval Jasper, 32.5 x 24.6 mm From Indonesia

34.9 ct Loose Violet Lepidolite, 40.2 x 10.6 mm Pencil Cut From the United States

49 carat Blue Green Aquamarine, Pear Shape loose Aquamarine from Madagascar, Natural Untreated Gem, 28.4 x 21.3 mm

9.84 ct Oval Rutile Quartz, 13.1 x 9.1 mm From India

11.01 ct Carved Rose Quartz, 19 x 14.1 mm From Brazil

1.01 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6 x 3.5 mm

12.95 carat Oval Pyrope Garnet, loose Certified Pyrope Garnet from Madagascar, Natural Untreated Gem, 15.3 x 13 mm

7.94 ct Carved Prehnite, 16.6 x 10.3 mm From South Africa

3.37 ct Oval Prehnite, 7.5 x 6.8 mm From South Africa

0.57 ct Oval Checkerboard Peridot, 6.1 x 4.1 mm From China

2.93 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6 x 4.1 mm

1.6 ct Yellow Beryl, 8.9 x 6.9 mm Cushion Cut From Madagascar

1.33 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 6.3 x 6.3 mm

7.27 carat Pink Kunzite, Pear Shape loose Kunzite from Afghanistan, Natural Untreated Gem, 17.8 x 7.5 mm

0.09 ct Black Diamond, 2.1 mm Diamond Cut From India

Gemstone Information

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