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Gemtrue testers how accurate are they and can they tell the difference from synthetic stones


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I am still waiting on my portable lab any idea where these rubies came from ?


most likely source is India


There is no gemstone “tester” that can separate natural from synthetic gemstones. From your photo, even a guess would be silly as they could be from any number of locations in Asia, Africa, North America or??? Also, they do appear to be very low grade corundum which has been dyed.