I found a ring that looks like gold, but, the numbers inside don't confirm that to me. It has a real diamond in it according to my tester, so, that's a good sign, but, why wouldn't they have stamped the purity inside? The only stampings inside the band say......MW3 and 015. I'm assuming the 015 is probably the diamond size in carats? The only thing I can find googling MW3 is related to Mulco watches. Does anyone recognize these as something definite? I'll do an acid test, but, I'd like to other opinions first.
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