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

Very large selection of items and we used the stones to have several pieces of jewelry made for us.

Posted By Joe in January, 2024

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Overall Rating -> 10

I particularly like information about product provided with purchase.

Posted By Dick in May, 2023

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Overall Rating -> 10

Todo muy bien en la compra ahora esperar recibir el pedido.

Posted By MAGSMX in August, 2023

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Overall Rating -> 10

I was pleased with the selection of gems, the ease of navigating, and the smooth checkout

Posted By JamesMichael781 in September, 2023

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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

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Overall Rating -> 10

Awesome

Posted By Mic in May, 2023

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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

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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

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 was looking for ammolite for my husband. Other websites are not always clear about whether they have genuine ammolite or simulated ammolite. I have purchased from GemSelect before and trust that the stones are genuine. Finding the stones I want is easy, and I love all of the search filter options!

Posted By Ana in September, 2023

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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

Everything was fine.

Posted By Matt in March, 2024

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Overall Rating -> 9

It was simple and clear to understand.

Posted By Thora007 in December, 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 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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Gemstones A-Z

Buy Octagon Shape 9x7 mm Gems

5.33 ct Round Cut Strawberry Quartz, 9 mm From Russia

6.07 carat Pink Topaz, Round loose Topaz from Brazil, Natural Gem, 11.1 mm

11.2 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 17.4 x 15.4 mm

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

6.61 ct Yellow Apatite, 10.6 x 10.4 mm Asscher Cut From Madagascar

5.22 ct Orange Sunstone, 10 x 8 mm Oval Cut From India

1.54 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 7.9 x 6 mm

1.83 ct Yellow Beryl, 9.8 x 7.8 mm Oval Cut From Madagascar

1.19 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 4.2 x 3.5 mm

2.42 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5 mm

3.74 ct Purple Kunzite, 9.4 x 7.6 mm Cushion Cut From Afghanistan

1.48 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 5.9 x 3.9 mm

4.25 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.7 x 9.2 mm

35.31 ct Square Jasper, 23 x 21.6 mm From Indonesia

25.83 ct Druzy Citrine, 21.5 x 15.4 mm From Uruguay

2.12 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 10.2 x 5.2 mm

31.03 ct Oval Fossil Coral, 22.3 x 12.6 mm From Indonesia

41.67 carat Pear Jasper, loose Certified Jasper from India, Natural Untreated Gem, 32.3 x 26.4 mm

2.7 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10 x 9.9 mm

2.14 ct Round Onyx, 5.5 mm From Sri Lanka

1.06 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 13.7 x 3.1 mm

1.92 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 7 mm

1.75 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5.2 mm

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

19.79 ct Baguette Hematite, 16.7 x 10.6 mm From Brazil

0.49 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 6.7 x 3.7 mm

3.41 ct Green Apatite, 8.9 x 8.9 mm Asscher Cut From Madagascar

2.36 ct Round Onyx, 5.6 mm From Sri Lanka

2.33 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.2 x 5.1 mm

3.67 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 12.1 x 6.1 mm

5 carat Round Almandine Garnet, loose Certified Almandine Garnet from Madagascar, Natural Untreated Gems, 3 mm

0.89 ct Loose Baguette Cut Smoky Quartz, 6.5 x 5.4 mm From Brazil

Gemstone Information

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