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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GemSelect has the Best gems. Clear photos and detailed description helps me make the best choice. I have Never been disappointed by thier quality items.

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Overall Rating -> 10

The website is easy to navigate and has a great selection. I am an amateur silver smith casting jewelry with stones

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Overall Rating -> 10

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Overall Rating -> 10

Very Good

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My overall interaction with your website was pleasant, as always.

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The site is very easy to use and I will continue to shop here. The quality is superb

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Overall Rating -> 8

Found on a search engine. Scanned inventory and made a small purchase.

Posted By Ralli in August, 2023

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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.

Posted By Mark in March, 2024

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Overall Rating -> 10

My only complaint is that there are so many beautiful and affordable stones that I get distracted from what I planned to order.

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Overall Rating -> 10

Excellent experience!

Posted By Steph in April, 2023

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Overall Rating -> 10

I love your selection of gems. My only complaing is I wish I could put in a page number to return to that page.When there are over 60 pages of gems it is hard to return to a page with a gem I am considering.

Posted By Cahall in March, 2024

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Overall Rating -> 10

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.

Posted By Papa in December, 2023

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Overall Rating -> 10

great. thank you

Posted By Carrotroller in July, 2023

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Gemstones A-Z

Buy Octagon Shape 9x7 mm Gems

35.34 ct Oval Tiger's Eye Matrix, 28.6 x 19.2 mm From Mexico

4.61 ct Oval Cut Golden Beryl, 10.2 x 8 mm From Madagascar

3.18 ct Green Agate, 10.5 x 8 mm Oval Cut From India

5.31 ct Octagon Cut Rose Quartz, 10.6 x 10.6 mm From South Africa

3.14 ct Loose Princess Cut Sapphire, 2.7 x 2.6 mm From Tanzania

40.28 carat Pear Hematite, loose Certified Hematite from Brazil, Natural Untreated Gem, 25.8 x 17.2 mm

2.06 carat Swiss Blue Topaz, Fancy-Cut loose Topaz from Brazil, Natural Gems, 7.1 x 5.1 mm

2.64 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gems, 10.3 x 5.1 mm

2.18 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7.1 x 5.1 mm

1.48 carat Yellow Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 6.2 mm

3.02 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 4.1 x 4 mm

3.01 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 9.1 x 6.9 mm

31.45 carat Pear Dendritic Agate, loose Certified Dendritic Agate from India, Natural Untreated Gem, 32 x 25 mm

1.54 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 10.3 x 7.2 mm

0.85 carat Trillion Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 8 x 8.3 mm

1.46 ct Pink Morganite, 6.9 mm Round Cut From Afghanistan

5.06 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14.1 x 10.2 mm

9.33 ct Brown Moonstone, 15.7 x 15.3 mm Carved From India

1.81 carat Blue Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 6.6 x 6.5 mm

0.74 carat Green Tourmaline, Cushion loose Tourmaline from Mozambique, Natural Untreated Gem, 6.1 x 4.7 mm

0.47 ct Loose Violet Sapphire, 5.7 x 3.8 mm Oval Cut From Tanzania

1.76 carat Round Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6 mm

0.8 ct Loose White Sapphire, 4.4 mm Diamond Cut From Madagascar

0.63 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 10.2 x 3.5 mm

0.14 ct White Diamond, 2.7 mm Diamond Cut From India

2.3 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 6 x 3.9 mm

11.22 carat Pear Shape Mystic Quartz, loose Certified Mystic Quartz from Brazil, Natural Gem, 19.9 x 15.1 mm

6.47 ct Asscher Cut Rose Quartz, 11 x 10.9 mm From South Africa

16.53 ct Oval Serpentine, 20.4 x 13.3 mm From the United States

1.89 ct Yellow Beryl, 8 x 5.9 mm Oval Cut From Madagascar

19.08 ct Cushion Fossil Coral, 16.3 x 12.5 mm From Indonesia

1.62 ct Loose White Sapphire, 4.4 mm Diamond Cut From Madagascar

Gemstone Information

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Gemstone EDUCATION

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