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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Gemstone Information

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Overall Rating -> 10

blessed be the lord blessed be the saved blessed be the work blessed be the traveled i write down my good times in these stones and when times are gray i can still se the sunny days refract in these stones

Posted By Kickbass.2 in May, 2023

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Overall Rating -> 10

Very Good

Posted By Julian in July, 2023

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Overall Rating -> 10

love yall

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Overall Rating -> 10

I particularly like information about product provided with purchase.

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Overall Rating -> 10

I have had and will always have a great time shopping at GemSelect. It's a great web site with great products and great service.

Posted By Apps in November, 2023

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Overall Rating -> 10

Great selection

Posted By GHS40 in December, 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

Easy to navigate

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Overall Rating -> 10

After having looked at other purchasing sites, this is my first choice.

Posted By MJC in January, 2024

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Overall Rating -> 10

The website design is a bit finicky for mobile, but Im sure its most likely just a mobile issue. Amazing selection of products, great prices.

Posted By Kuba in December, 2023

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Overall Rating -> 10

Excellent selection of products. Website easy to navigate and make purchases.

Posted By David in April, 2023

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Overall Rating -> 8

Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

Posted By Nick in March, 2024

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Overall Rating -> 10

Love Gem select. great gems for the price. Can't beet them

Posted By Apps in September, 2023

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Overall Rating -> 10

Always an easy experience using Gem select.

Posted By Jeff in November, 2023

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Overall Rating -> 10

first time here sooooooooooo we will seeeee!!!!! so far so good!!!!!!

Posted By Seastone 56 in October, 2023

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Gemstones A-Z

Buy Octagon Shape 9x7 mm Gems

85.53 ct Oval Ruby-Zoisite, 38.2 x 30.3 mm From Tanzania

4.86 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.5 x 4.5 mm

1.24 ct Oval Sillimanite Cat's Eye, 7.2 x 4.2 mm From Madagascar

2.76 ct Oval Sillimanite Cat's Eye, 9.4 x 6.6 mm From Madagascar

6.98 carat Swiss Blue Topaz, Carved Leaf loose Topaz from Brazil, Natural Gem, 14.2 x 11.4 mm

0.63 ct Round Cut Color-Change Diaspore, 5.3 mm From Turkey

17.25 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 23.3 x 18.5 mm

12.48 ct Gray Jadeite, 17.2 x 11.8 mm Oval Cut From Myanmar

2.37 carat Carved Leaf Ruby, loose Certified Ruby from Madagascar, Natural Gem, 12.6 x 7.2 mm

60.74 ct Oval Jasper, 43.8 x 26.9 mm From Indonesia

9.58 ct Gray Jadeite, 16.4 x 12.5 mm Oval Cut From Myanmar

1.65 ct Blue Kyanite, 8.1 x 6 mm Oval Cut From Nepal

0.64 ct Purple Spinel, 5.1 mm Round Cut From Tanzania

3.04 ct Red Andesine Labradorite, 10.3 x 8.3 mm Oval Cut From Congo

6.64 ct Oval Prehnite, 7.3 x 6.3 mm From South Africa

14.16 carat Sky Blue Topaz, Carved Fruit loose Topaz from Brazil, Natural Gem, 21.4 x 10.7 mm

19.8 ct Oval Tiger's Eye, 16.1 x 12 mm From Thailand

10.4 ct Oval Star Sunstone, 14.5 x 12.7 mm From India

1.56 ct Oval Cut Peridot, 8 x 5.9 mm From China

4.85 ct Cushion Onyx, 11 x 10.9 mm From Sri Lanka

9.78 carat Bi-color Ametrine, Emerald-Cut loose Ametrine from Brazil, Natural Untreated Gem, 13.7 x 10 mm

15.13 carat Square Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 7.3 x 7.2 mm

1.58 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5 x 3.1 mm

2.1 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8.6 x 7.2 mm

1.44 ct Oval Cut Rainbow Moonstone, 8.1 x 6.1 mm From the United States

6 ct Yellow Agate, 12.2 x 10.5 mm Oval Cut From India

2.22 ct Loose Oval Cut Black Opal, 11.2 x 8.5 mm From Ethiopia

1.05 carat Pear Tiger's Eye, loose Certified Tiger's Eye from Thailand, Natural Untreated Gem, 6.1 x 5.6 mm

11.46 ct Yellow Quartz, 12.1 mm Round Concave Cut From Brazil

0.92 ct Cushion Cut Color-Change Diaspore, 7.1 x 5.5 mm From Turkey

1.65 ct Round Cut Strawberry Quartz, 8 mm From Russia

1.81 ct Loose Orange Hessonite Garnet, 8.3 x 6.9 mm Oval Cut From Madagascar

Gemstone Information

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