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Could this be a huge uncut diamond? (found after hurricane)

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I'm not sure this is the right place to post this but im trying to get some advice from people who know diamonds. Hoping here someone has experience with uncut diamonds.

How it was found: Last year during hurricane Irma we were hit pretty hard in Florida. This was found near west palm beach right after the hurricane. There were huge rocks that were overturned and it was found near it. 


tests done:

  • a diamond tester found it was diamond positive.
  • he tried cutting it with a drill bit and it just slid off
  • he put it under UV to see if it glows (i guess he said that's a way to tell if its a real diamond?)

It would be pretty wild if he found a diamond that was washed up from a shipwreck. He also found a silver rod that was used to make coins, and lots of coin fragments from really old coins.

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It's pretty easy to tell, but not from photographs.  Lots of false results from the diamond testers if the operator doesn't know what they're doing. Lack of UV tells you nothing. Neither does the drill but but that also has a certain risk of damaging both the operator and the stone. Just avoid that one. Take it to a jeweler or a pawn shop and they can test it for you. Most will be happy to do it for free. 

Edited by denverappraiser

Neil Beaty



There's never a crowd when you go that extra mile.

Professional Appraisals in Denver

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