I lost a one carat diamond stud earring set in yellow gold. I was lucky enough to be able to purchase a one carat moissanite stone from you. That one was set in white gold so I took both of them to Jarods Jewelry store so they could reset my diamond in a white gold setting to match the moissanite. The goldsmith came out of the lab to ask me which one was the diamond. He said they both tested as diamond! I was able to tell because the moissanite stone was slightly larger.