As with anything - you need to know what you’re doing.
I buy a lot of stones on ebay auctions. I prefer ebay because most of the vendors display their stones on a rotating turn table and the image can be magnified to the point of covering your whole computer screen. This works as good as a gemscope for me in most cases. The only problem I have is that sometimes the colors show more intense on the screen than in real time. Howsomever, I have not yet returned a stone because of color variance - out of several hundred I’ve bought. Just google ebay gemstone auctions or ebay loose gemstones. I’ve gotten some incredible deals this way.
I say again: You need to know what you’re doing. Good luck. TRB
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