Buy Onyx Gemstones(240) |
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Onyx is the black form of chalcedony, a cryptocrystalline form of quartz. Onyx naturally occurs in bands of black and white, and is typically dyed to produce the familiar jet black cabochons.
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Overall Rating -> 10 
It was great i bet there is a way to just look for blue gemstones but I found em so it doesn't matter.
Overall Rating -> 9 
Would like returning customers to be able to sign in. Didn’t see this option on site. Love your products and UX is good.
Overall Rating -> 10
The website is great!! Easy to navigate and find the gems you want. Definitely ordering more for my collection.
Overall Rating -> 10
Just finished the order, cant wait to get the stone and have it mounted in my old wedding set
Overall Rating -> 8 
This is my first purchase from gem select so I will withhold my opinion until I receive my order.
Overall Rating -> 10
🧐🧐🧐.. Very professional, easy purchases, easily navigated website, great pricing!
Overall Rating -> 10
So easy and helpful! So many gems in all shapes and sizes.
Overall Rating -> 10
Great site; I've purchased many stones here.
Overall Rating -> 10
Large selection of gems and easy to use site
Overall Rating -> 9
easy to navigate. Was a fun experience.
Overall Rating -> 10
easy to use and good products
Overall Rating -> 9
Would love to be able to purchase mixed gem lots.
Overall Rating -> 10
I was very happy with the simplicity and prices of gemselect.com. the sites filters and navigation style made it simple to find exactly what I was looking for. I will definitely be buying from gemselect ago. Compared to other online stone sellers, the prices and availability of gemselect was amazing.
Overall Rating -> 9
I don't often buy gems online but when I do, you can count on on thing. That's, I'm buying from Gemselect.com
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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  |
