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.

Read All

Gemstone Information

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 9

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

Posted By Sparkle in March, 2024

Source: Bizrate

Overall Rating -> 10

Found the stone I wanted which was delivered quickly and met expectations.

Posted By GemGrammy in January, 2024

Source: Bizrate

Overall Rating -> 10

Purchased for my granddaughter she was very pleased with it.

Posted By Charlie in April, 2024

Source: Bizrate

Overall Rating -> 10

Great selection of various gems, easy to navigate site

Posted By Josh in August, 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

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

I love the clear description of the certification options. It's very rare to see a gem site that offers a deep explanation of each institution that would certify the stone(s).

Posted By Oakcityceo in May, 2023

Source: Bizrate

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

Source: Bizrate

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 site was easy to shop and the payment was secure. I’m looking forward to receiving my order!

Posted By JAB93 in June, 2023

Source: Bizrate

Overall Rating -> 10

Easy to use website, made it very easy to buy. Will shop here again.

Posted By Bjorn in January, 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

My only complaint is that there are so many beautiful and affordable stones that I get distracted from what I planned to order.

Posted By Phoenix in March, 2024

Source: Bizrate

Overall Rating -> 10

Great selection

Posted By GHS40 in December, 2023

Source: Bizrate

Overall Rating -> 9

GemSelect has a fantastic assortment of Semi-precious stones. I have not found any other web site with the variety you have.

Posted By RobDill in August, 2023

Source: Bizrate

Gemstones A-Z

Buy Octagon Shape 9x7 mm Gems

3.14 ct Oval Cut Golden Beryl, 9.2 x 7.1 mm From Madagascar

18.34 carat Pear Howlite, loose Certified Howlite from the United States, Natural Untreated Gem, 22.9 x 21.2 mm

5.07 ct Oval Strawberry Quartz, 11 x 9.1 mm From Russia

0.73 carat Pear Shape Emerald, loose Certified Emerald from Colombia, Natural Gem, 7.3 x 4.9 mm

0.48 ct Loose Yellow Sapphire, 4.5 x 4.5 mm Heart Cut From Tanzania

2.4 ct Green Agate, 9 x 7.5 mm Oval Cut From India

0.71 carat Blue Sapphire, Marquise-Cut loose Sapphire from Madagascar, Natural Gem, 8 x 4 mm

2.31 ct White Moonstone, 9.9 x 7.8 mm Oval Cut From India

5.6 ct Asscher Cut Smoky Quartz, 10.5 x 10.4 mm From Brazil

1.77 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.4 x 5.9 mm

0.55 ct Loose Yellow Sapphire, 5.9 x 4.1 mm Oval Cut From Tanzania

0.76 carat Green Sapphire, Oval loose Sapphire from Tanzania, Natural Gem, 6 x 4.9 mm

4.3 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.9 x 5.2 mm

4.24 ct Fancy Fire Agate, 11.6 x 9.4 mm From Mexico

2.37 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gem, 12.1 x 6.2 mm

18.29 carat Pink Kunzite, Pear loose Kunzite from Afghanistan, Natural Untreated Gem, 21.5 x 13.2 mm

3.01 ct Green Agate, 9.4 x 8.3 mm Oval Cut From India

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

3.28 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gem, 8.3 x 6.4 mm

1.29 ct Green Sphene, 6.5 x 5.5 mm Oval Cut From Sri Lanka

1.82 ct Green Sphene, 8.8 x 6.2 mm Oval Cut From Sri Lanka

8.76 ct Marquise Rutile Quartz, 21.2 x 8.9 mm From India

25.34 ct Oval Nuummite, 20.7 x 14.3 mm From India

9.65 ct Round Maw-Sit-Sit, 13.5 mm From Myanmar

1.08 ct Oval Tiger's Eye, 7.8 x 6 mm From Thailand

2.32 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.2 x 3.2 mm

0.34 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 5.8 x 4 mm

1.13 carat Green Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 6.4 mm

1.12 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 6.9 x 5.1 mm

14.7 ct Oval Jasper, 20 x 15 mm From Indonesia

64.06 carat Pear Tiger's Eye Matrix, loose Certified Tiger's Eye Matrix from Mexico, Natural Untreated Gem, 33.9 x 33.3 mm

1.6 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 8.1 x 6.2 mm

Gemstone Information

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT