Calibrated 11 x 9 mm Octagon Shape 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 11 x 9 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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Overall Rating -> 10

Great selection and excellent website.

Posted By JBW in October, 2023

Source: Bizrate

Overall Rating -> 8

I am currently pleased. I like the layout of the website.

Posted By RayPoppa in January, 2024

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Overall Rating -> 10

Everthing about researching and ordering from Gemselect was easy and uncomplicated. In the past I had payment problems, but your customer rep, Thomas, helped me get everything right. I will continue using Gemselet in the future for these reasons.

Posted By WildwillyfromArizona in August, 2023

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Overall Rating -> 10

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

Posted By Jen in August, 2023

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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

The website is easy to navigate and the images are incredible.

Posted By Lindsy in October, 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

Source: Bizrate

Overall Rating -> 10

Great Job today! No issues!

Posted By Samlovesgems777 in August, 2023

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Overall Rating -> 9

over the experience was similar to other sites i have used. The only real note I have is the checkout experience was tedious and discriminatory, i wouldn't accept visa gift cards, which not only have guaranteed funds but help protect from misuse of personal information, but would not accept my visa b/c it is a prepaid card. I don't have bank account and I have been using the prepaid card for years without issue so this was disappointing to me. I feel safer using reputable gem sites rather than amazon or ebay (I have been sold fake gems with fake certs on both), but not being able to use my own valid legitimate funds and having to find a friend to buy for me b/c I use a non-bank card like 40% of the country is insulting.

Posted By Iggywiggly in January, 2024

Source: Bizrate

Overall Rating -> 7

I placed order#384714 based on the picture on your website and the stone came in much darker. I'm sure it's the same stone i ordered but your lighting made it seem a lighter blue. I was trying to match a stone for a customer and based on the picture it would have been close enough but the stone in person is a mile off.

Posted By Bobk in February, 2024

Source: Bizrate

Overall Rating -> 10

I have started a small gem brokerage. I find stones to meet clients needs. Gemselect has helped me find what people what.

Posted By Pirates Bounty in April, 2024

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Overall Rating -> 10

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.

Posted By PixelComposer in January, 2024

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Overall Rating -> 10

Everything was fine.

Posted By Matt in March, 2024

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Overall Rating -> 10

Purchased for my granddaughter she was very pleased with it.

Posted By Charlie in April, 2024

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Overall Rating -> 10

My last experience was good, in fact every experience I have had with them has met my expectations or surpassed them. These are really good people to work with.

Posted By Spinach in May, 2023

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Gemstones A-Z

Buy Octagon Shape 11x9 mm Gems

1.56 ct Purple Spinel, 6.5 x 6.2 mm Cushion Cut From Tanzania

0.36 ct Blue Kyanite, 3.9 mm Round Cut From Nepal

8.95 ct Yellow Quartz, 10.2 x 10 mm Carved From Brazil

0.33 ct Blue Apatite, 3.6 mm Round Cut From Madagascar

6.33 carat Swiss Blue Topaz, Round loose Topaz from Brazil, Natural Gems, 9.2 mm

2.29 ct Round Cut Strawberry Quartz, 7.2 mm From Russia

18.8 ct Brown Moonstone, 21.6 x 16 mm Oval Cut From India

1.63 ct Orange Moonstone, 7.7 mm Round Cut From India

0.53 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 5 mm

4.1 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6 x 4.1 mm

1.26 ct Loose Yellow Sapphire, 6 x 4.9 mm Oval Cut From Tanzania

23.29 ct Square Hematite, 15.8 x 14.7 mm From Brazil

7.01 carat Pear Rainbow Moonstone, loose Certified Rainbow Moonstone from the United States, Natural Untreated Gem, 20.7 x 8.9 mm

7.61 carat Pear Charoite, loose Certified Charoite from Russia, Natural Untreated Gem, 16.6 x 12.2 mm

8.82 ct Orange Moonstone, 11.3 mm Round Cut From India

11.24 ct Carved Rose Quartz, 17.4 x 17.4 mm From Brazil

0.91 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 5.1 x 4 mm

6.6 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 14 x 10.1 mm

12.44 ct Yellow Quartz, 16.2 mm Round Concave Cut From Brazil

2.2 ct Orange Moonstone, 7.2 x 7.2 mm Square Cut From India

3.56 ct Orange Sunstone, 9.8 mm Round Cut From India

37.38 carat Pear Jasper, loose Certified Jasper from Indonesia, Natural Untreated Gem, 38.2 x 24.4 mm

1.23 carat Princess-Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 6.6 x 6.5 mm

2.22 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.7 x 7.2 mm

0.33 carat Oval Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 5.4 x 3.9 mm

21.58 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 18.8 x 16 mm

5.32 carat Swiss Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 9 x 9.1 mm

1.77 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 8.1 x 6.2 mm

2.92 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.5 mm

3.83 ct Green Jade, 12.4 x 10.1 mm Oval Cut From Myanmar

2.63 carat Trillion-Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.8 x 6.1 mm

0.6 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 7 x 4.9 mm

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