What does the stamp RJM stand for on jewelry?
IT IS ALSO STAMPED 14K
I think those are the brand initials of the maker, a jewelry store in Las Vegas. 14k is announcing its gold contents.
14k means it's 14 Karats.
Radical Jewellery Makeover, just googled it. :PAnd as I'm sure you know (and everybody else) 14K stands for 14 karat gold, which means it's like 58% gold or something if my memory serves moi correctly. :)