Asked in JewelryGold and Precious Metals
What does JCR 10k stamped inside a ring mean?
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.