Hi Leon, The diamond may have a inscription number on it and hopefully may have been reported lost or stolen to a local police department. You can bring it in and we can see if the diamond in laser inscribed and contact local authorities,who maybe able to help find the owner.
Diamonds are stamped with a ID number ~ Can say who bought it ~ But they may have sold it to someone ~ So finding the original owner maybe hard ~ Start at the Gold & Diamond Source and see what they can find out for you
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