Buy Octagon Shape 7x5 mm Gems(262) |
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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 7 x 5 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 
A wonderful time selecting gems. I hope to buy more in the future.
Overall Rating -> 10
🧐🧐🧐.. Very professional, easy purchases, easily navigated website, great pricing!
Overall Rating -> 10
The Website was easy to navigate! Found 11 stones for my grandkids easily! Can’t wait to get them!!
Overall Rating -> 10
I enjoy this website and always choose to use of .
Overall Rating -> 9 
I found GemSelect easy to use and gave me the info I wanted!
Overall Rating -> 7 
you offer the illusion of i can pay with my credit card but, but software wont accept payment unless i used pay pal.
Overall Rating -> 10
I have been looking at the website for a few days, educating myself about Sapphires and other gems. I want to have earrings made as a gift for someone. I bought a air of gemstones for myself today. They look beautiful in the photo.
Overall Rating -> 10
Excellent shape for the jewelry I'm designing. Appears to have good color and will look nice.
Overall Rating -> 9
First time user. So far the experience has been pleasant but will know more after receiving the product.
Overall Rating -> 9
I found that gem select met all my needs and wants and was very pleased 👍🏻👍🏻👍🏻
Overall Rating -> 10
checkout very quick and easy
Overall Rating -> 10
So easy and helpful! So many gems in all shapes and sizes.
Overall Rating -> 8 
Good: Your reputation of selling quality trusted gems is what encouraged me to buy from you in the first place. Without it, I would not have bought anything. I intend to test everything with a gem tester, but also will get privately appraised.Bad: My only gripe is the labs you use aren't the best. They're not very well known, and not readily accepted by the buying market in my opinion. Pending my gemologist appraisals, we'll see how well your assessment aligns with trusted IGS accredited appraisals.
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Size and Weight
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Gems are always measured in Millimeter (mm) Dimensions are given as; Select gems by size, not by weight! Note: 1ct = 0.2g  |
