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

The website is well organized and works fast forward and back. Plenty of filters. Each gem is described in detail and you receive the one pictured. Gem material info and sources available. I would like to see more specifics on sources besides country- at least region or state and in the US with Turquiose which mine. Thanks!

Posted By Orchidisle in February, 2024

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Overall Rating -> 10

Extremely easy to use, and I am fully satisfied with the purchase process.

Posted By Fl_Beachcomber in October, 2023

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Overall Rating -> 10

Overall, the whole process was just great.

Posted By Thatoneguy in August, 2023

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Overall Rating -> 10

Very excited and impressed with all your products. Keep up the good work....more different stones to choose from. I like Cabachons.

Posted By Meow in June, 2023

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Overall Rating -> 9

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023

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Overall Rating -> 10

Convenient selection, arrival on time

Posted By Alin in February, 2024

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Overall Rating -> 10

I am excited for my first order, search tools were a great help to find the sapphire I needed for my next project! Thank you

Posted By Sue in April, 2023

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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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Overall Rating -> 10

Very pleased with shopping on this site. It's easy to navigate and information about gemstones is very good.

Posted By Kate in December, 2023

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Overall Rating -> 10

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

Posted By Genia in January, 2024

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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 -> 10

I enjoyed browsing though different varieties of rubies. I felt that the experience was simple and easy to navigate!

Posted By Daws in July, 2023

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Overall Rating -> 10

Fine. All emails answered. Excellent service. Nice discount added for orders. Briefly, a very good experience.

Posted By C.J. in February, 2024

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Overall Rating -> 10

I love GemSelect, photos and details are great.

Posted By #1 in February, 2024

Source: Bizrate

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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Gemstones A-Z

Buy Octagon Shape 11x9 mm Gems

2.15 ct Loose Yellow Sapphire, 4.9 mm Round Cut From Tanzania

12.42 carat Pear Tiger's Eye, loose Certified Tiger's Eye from Thailand, Natural Untreated Gem, 20.1 x 14.6 mm

0.51 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.1 x 4 mm

0.77 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 9.2 x 3.8 mm

0.84 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5 x 5 mm

18.76 ct Loose Round Checkerboard Amethyst, 17.8 mm From Brazil

4.19 ct Round Cut Peridot, 5.6 mm From China

22.72 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18.1 x 18 mm

0.52 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gem, 5.7 x 4 mm

1.21 ct Oval Cut Peridot, 7.9 x 5.9 mm From China

36.67 ct Loose Pencil Cut Rainbow Moonstone, 41.7 x 10.2 mm From the United States

0.71 ct Octagon Cut Color-Change Diaspore, 5.9 x 4.7 mm From Turkey

3.37 ct Oval Cut Golden Beryl, 11.3 x 9.1 mm From Brazil

103.65 ct Fancy Agate, 44.2 x 28 mm From Indonesia

8.58 ct Green Amazonite, 7.2 x 7.2 mm Cushion Cut From Madagascar

2.34 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 9.1 x 9 mm

5.04 ct Orange Sunstone, 12.2 x 10 mm Oval Cut From India

106.71 carat Multicolor Tourmaline, Carved Leaf loose Tourmaline from Mozambique, Natural Untreated Gem, 56.2 x 37.7 mm

0.46 ct Loose Purple Sapphire, 7.3 x 4.5 mm Odd Shaped From Tanzania

3.25 carat White Topaz, Oval loose Topaz from Brazil, Natural Untreated Gem, 10.1 x 8.1 mm

1.39 carat Oval Emerald, loose Certified Emerald from Zambia, Natural Gem, 8.1 x 6.2 mm

25.38 carat Black Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 19.1 x 13.5 mm

1.98 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.5 x 6.9 mm

7.65 ct Green Amazonite, 18.1 x 9.3 mm Marquise Cut From Madagascar

5.37 ct Orange Moonstone, 10.1 mm Round Cut From India

73.19 ct Odd Shaped Charoite, 48 x 28.6 mm From Russia

4.58 carat Sky Blue Topaz, Round loose Topaz from Brazil, Natural Gems, 8 mm

3.69 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.8 x 9.8 mm

2.95 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 5.2 x 3.3 mm

3.64 ct Yellow Agate, 10.8 x 9.1 mm Oval Cut From India

0.54 ct Pink Spinel, 4.7 x 4.6 mm Cushion Cut From Tanzania

5.21 ct Round Concave Cut Smoky Quartz, 12.1 mm From Brazil

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