Calibrated 8 x 6 mm Octagon Shape Natural Gemstones: GemSelect

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Octagon Shape 8x6 mm Gems
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 8 x 6 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.

Certified Customer Reviews

Overall Rating -> 10

Website easy to navigate.

Posted By RaeRae in January, 2019

Source: Bizrate

Overall Rating -> 9

I WOULD RECOMMEND GEM SELECT.

Posted By BO in January, 2019

Source: Bizrate

Overall Rating -> 10

As Always never disappointed in any gemstone I purchase from this site. I have never had a problem. Thank-You Gemselect for offering such a comprehensive variety . I will continue to order from this site.

Posted By Brian in January, 2019

Source: Bizrate

Overall Rating -> 10

Easy to find what i'm looking for on website, very clear, like photos

Posted By Lifter in January, 2019

Source: Bizrate

Overall Rating -> 10

Better than what I expected. Beautifully cut gem!

Posted By in January, 2019

Source: Bizrate

Overall Rating -> 10

Gem select is the most trustworthy web site for gems. What I see in the picture is exactly what I get. Size is indicated by carat weight, and not the picture size, as they are trying to give an up close view of the gem I am hoping to buy. It was so easy to find the stones I was looking for at a price I could afford.

Posted By Nan in January, 2019

Source: Bizrate

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Buy Octagon Shape 8x6 mm Gems

Octagon / Emerald Cut Orange Citrine

Octagon / Emerald Cut Yellow Citrine

Octagon / Emerald Cut Blue Topaz

Octagon / Emerald Cut Yellow Citrine

Octagon / Emerald Cut Blue Iolite

Octagon / Emerald Cut Blue Topaz

Orange Hessonite Garnet

Orange Hessonite Garnet

Octagon / Emerald Cut Blue Topaz

Octagon / Emerald Cut Blue Topaz

Orange Hessonite Garnet

Orange Hessonite Garnet

Octagon / Emerald Cut Yellow Citrine

Octagon / Emerald Cut Blue Topaz

Orange Hessonite Garnet

Octagon / Emerald Cut Yellow Citrine

Octagon / Emerald Cut Blue Topaz

Octagon / Emerald Cut Blue Topaz

Octagon / Emerald Cut Blue Topaz

Octagon / Emerald Cut Yellow Citrine

Octagon / Emerald Cut Blue Topaz