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 -> 8

purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

Posted By MI photo in May, 2023

Source: Bizrate

Overall Rating -> 10

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

Posted By Jrplunk in April, 2024

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Overall Rating -> 10

Interested in unusual stones and found many that I purchased or will purchase in the near future. I have been a customer of gem select for almost ten years and have always been pleased with buying experience and the delivered product

Posted By Fairhope Pete in December, 2023

Source: Bizrate

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

Very easy. I have purchased a few times before and was satisfied each time. Thank you.

Posted By Ray in December, 2023

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Overall Rating -> 10

Very good, very fast, everything as described.

Posted By B in October, 2023

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Overall Rating -> 10

I have received emails for about a year and today is the condition that had me decide on the purchase

Posted By Tim in April, 2024

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Overall Rating -> 10

I particularly like information about product provided with purchase.

Posted By Dick in May, 2023

Source: Bizrate

Overall Rating -> 10

Love gemselect

Posted By Joshua Howard in March, 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

Source: Bizrate

Overall Rating -> 10

My first order. I am anxious to see if what I ordered is what I receive.

Posted By KRJ in July, 2023

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 10

Pleasant.

Posted By Mk in November, 2023

Source: Bizrate

Overall Rating -> 10

Hello: You do have good website. Vast majority of folks would buy the Gems for its spiritual, physical / energy level, emotional level positive aspects. You have only very brief mention of this aspect of each Gem ..may be you can add little bit more about ways to leverage the beneificial effect of each gems i.e. some practical tips.ThanksRupen Patel

Posted By EarthDeep in February, 2024

Source: Bizrate

Overall Rating -> 10

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

Posted By Seastone 56 in October, 2023

Source: Bizrate

Gemstones A-Z

Buy Octagon Shape 11x9 mm Gems

14.1 ct Oval Serpentine, 19 x 13.2 mm From the United States

3.28 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.4 x 8.5 mm

14.96 ct Oval Nuummite, 18.4 x 11.4 mm From India

0.91 ct Blue Green Apatite, 6.9 x 4.9 mm Oval Cut From Madagascar

1.12 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gem, 11.5 x 6.7 mm

4.59 carat Blue Sapphire, Pear Shape loose Sapphire from Sri Lanka, Natural Gem, 11.8 x 8.3 mm

0.93 ct Octagon Cut Peridot, 7 x 5.1 mm From China

5.67 ct Oval Star Moonstone, 12.3 x 10.4 mm From India

12.46 ct Loose Round Agate, 12.6 mm From Indonesia

14.12 carat Cameo Mother of Pearl, loose Certified Mother of Pearl from China, Natural Gem, 25 mm

2.81 ct Round Spectrolite, 9.1 mm From Finland

1.42 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 7.9 x 6.1 mm

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

0.91 carat Blue Sapphire, Oval loose Sapphire from Sri Lanka, Natural Gem, 7.1 x 5.1 mm

2.23 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.7 x 7.1 mm

1.45 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 14.8 x 3.9 mm

1.04 carat Pink Morganite, Pear Shape loose Morganite from Brazil, Natural Untreated Gem, 11 x 5.2 mm

60.06 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 31.4 x 21.8 mm

8.99 ct Yellow Quartz, 20 x 12.8 mm Marquise Cut From Brazil

1.22 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 10.1 x 5 mm

0.93 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6 x 4.2 mm

0.8 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 5.4 x 5.3 mm

3.68 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 8.8 mm

0.64 ct Oval Cut Fire Opal, 7.7 x 6.1 mm From Mexico

1.05 carat Orange Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 7.2 x 5.2 mm

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

0.68 ct Green Sphene, 5 x 4.7 mm Cushion Cut From Sri Lanka

1.22 ct Yellow Sphene, 6.7 x 5.9 mm Oval Cut From Sri Lanka

3.13 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gems, 8.1 x 6.2 mm

12.47 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15 x 14.9 mm

1.06 carat Teal Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.6 x 5.6 mm

3.61 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.1 x 9 mm

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