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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Overall Rating -> 10

I purchase all of my stones from GemSelect! They're the best I've found for both selection and value.

Posted By Terry in June, 2023

Source: Bizrate

Overall Rating -> 10

Purchasing from Gem Select was a pleasant and easy experience. The photos of the stones I was interested in were an accurate depiction of the stones I received. Ordering was easy and the items arrived within a week. Over all it was a very positive experience.

Posted By Dee in September, 2023

Source: Bizrate

Overall Rating -> 9

It was simple and clear to understand.

Posted By Thora007 in December, 2023

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Overall Rating -> 10

Love gemselect

Posted By Joshua Howard in March, 2024

Source: Bizrate

Overall Rating -> 10

Everything was fine.

Posted By Matt in March, 2024

Source: Bizrate

Overall Rating -> 9

My first purchase went well. I will purchase more gems in the future.

Posted By NoHalalAl in March, 2024

Source: Bizrate

Overall Rating -> 10

I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

Posted By ChiChi in January, 2024

Source: Bizrate

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

I find the website user friendly.

Posted By Becky in August, 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

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

Posted By Apps in September, 2023

Source: Bizrate

Overall Rating -> 10

Selection and purchasing online was very easy

Posted By Aggy in January, 2024

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 10

Was easy to search for many gems and mineral stones.Authenticity of natural stones is important, and I feel this site offers some assurance on this.

Posted By DanM in November, 2023

Source: Bizrate

Overall Rating -> 9

Not easy enough to buy by exact size, and many stones aren't carbechon curved shape on top

Posted By Erick in July, 2023

Source: Bizrate

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Gemstones A-Z

Buy Octagon Shape 9x7 mm Gems

1 ct Marquise Cut Peridot, 7.9 x 4 mm From China

1.53 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.3 x 6.2 mm

0.42 ct Blue Apatite, 3.5 mm Round Cut From Madagascar

4.7 ct Round Cut Smoky Quartz, 11.6 mm From Brazil

0.74 ct Square Buff Top Peridot, 5.1 x 5.1 mm From China

0.86 carat Orange Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gems, 7.9 x 4 mm

1.33 carat Sky Blue Topaz, loose Topaz from Brazil, Natural Gem, 10 x 5 mm

2.66 ct Round Tiger's Eye, 8 mm From Thailand

2.29 ct Oval Strawberry Quartz, 9.2 x 7.2 mm From Russia

1.78 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.2 x 4.1 mm

5.47 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 13.9 x 10 mm

12.52 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15.1 x 15.1 mm

13.3 carat Brown Pearl, Ball loose Pearl from South Sea, Natural Gem, 12.3 mm

13.71 ct Oval Nuummite, 17.5 x 13.8 mm From India

0.75 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6.6 x 4.9 mm

1.84 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 8.7 x 5.2 mm

1.54 carat Pear Shape Rainbow Moonstone, loose Certified Rainbow Moonstone from India, Natural Untreated Gems, 5.2 x 5.1 mm

3.38 ct Pink Kunzite, 9.3 x 6.8 mm Oval Cut From Afghanistan

1.83 carat Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.2 x 5.2 mm

1.41 ct Square Tiger's Eye, 6 x 6 mm From Thailand

13.57 ct Rainbow Pyrite, 18.4 x 17.9 mm From Russia

1.59 ct Oval Carnelian, 9.1 x 7.1 mm From India

4.87 carat Swiss Blue Topaz, Emerald-Cut loose Topaz from Brazil, Natural Gems, 8.8 x 6.9 mm

0.18 carat Square Emerald, loose Certified Emerald from Colombia, Natural Gem, 3 x 2.9 mm

3.52 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 9.1 mm

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

8.24 ct Black Spinel, 9.8 mm Round Rose Cut From Thailand

15.19 carat Carved Rose Mother of Pearl, loose Certified Mother of Pearl from China, Natural Gem, 24 x 15.7 mm

1.83 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.2 x 7.1 mm

1.16 ct Oval Prehnite, 6.7 x 5.2 mm From South Africa

3.11 carat Rondelle Cut Tourmaline, loose Certified Tourmaline from Mozambique, Natural Untreated Gems, 4.5 x 4.4 mm

3.31 ct Round Cut Peridot, 4.8 mm From China

Gemstone Information

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WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT