Buy Octagon Shape 27 x 20 mm Gems

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Octagon Shape 27 x 20 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 27 x 20 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

I was originally looking to spend a lot more on an Alexandrite. please let me know if you have any i can purchase.

Posted By Jonathan C. in May, 2021

Source: Bizrate

Overall Rating -> 10

I was looking for a gem to put in my grandmother's necklace for an event. GemSelect made it easy to narrow down what I was looking for, had a great price, and was very convenient.

Posted By Lauren in May, 2021

Source: Bizrate

Overall Rating -> 10

Easy to order. Was satisfied with my first order.

Posted By Ski in April, 2021

Source: Bizrate

Overall Rating -> 10

Gemselect offers high quality stones at very competitive prices. The details they provide with each item are very accurate. A quality site with quality products.

Posted By TomL in December, 2021

Source: Bizrate

Overall Rating -> 10

Great products. I make custom jewelry and gemselect let’s me provide a variety of quality stones to my customers to choose from. Thank you.

Posted By Austin in June, 2021

Source: Bizrate

Overall Rating -> 10

Huge selection with various price for item.

Posted By Teddy bear in May, 2021

Source: Bizrate

Overall Rating -> 10

I have ordered many many gems over the years from them and I am always VERY happy!! And if I wasn't they do accept returns which is a great peace of mind.

Posted By SaraP in July, 2021

Source: Bizrate

Overall Rating -> 10

I could find gems and information about them easily.

Posted By Verbena in July, 2021

Source: Bizrate

Overall Rating -> 9

I like quality, selection, no charge tax and good shipping.

Posted By Thea in April, 2021

Source: Bizrate

Overall Rating -> 8

always an unusual gem from Gemselect....always something that may become a conversation piece

Posted By Star Viking in April, 2021

Source: Bizrate

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