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Jewelry
Gold and Precious Metals

What does JCR 10k stamped inside a ring mean?

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Wiki User
April 16, 2010 7:24PM

JCR is the maker's mark; 10k means it is 10 carat gold. Google "carat" if you want to learn about the different gold carats in jewelry.

JCR is the maker's mark. I am trying to find exactly who and where this one came from. I own a vintage black opal ring (around the 1950's) with the same maker's mark and same carat gold. So far I have found one other with the same mark online that is also a vintage and white opal.