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Naturally Colored Diamond Blog

What is a Blocked Stone in a GIA Report?

Posted by Tony Cathaway on 10/18/18 9:12 AM

Although rare, there have been instances when the GIA will issue a report that will include a very distinct term, a term that is not seen on general official reports for colored diamonds.

 

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The term we are referring to is “blocked stone.” Have you ever seen this on one of your reports? Have you ever wondered what this might actually mean? Let’s dig in together and find out.

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Topics: colored diamonds, Rough Diamonds, GIA