I submitted a ring for an appraisal (something I bought in Aruba) and they told me that my diamond could possibly be a FAKE. They did further testing with the DeBeers machine and the diamond in question turned out to be A LAB GROWN. I contacted the jeweller in Aruba (with the help of CDL certificate) and luckily got my money back. The other appraiser I had it checked out with (6 months earlier) did not detect it. If you want a good thorough appraisal, I would recommend these guys..
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