QuestionI have a 10K gold onyx ring with a tiny diamond in the center. On the back next to 10K are the letters PSCO. Do you know what the letters mean? Thank you.
Mary
AnswerHi Mary, many times it is the initials of the designer or goldsmith .. in this case there are 4 letters and the second end in CO ,,,so probably it is abbreviation for the company that produced the ring ...Try asking a estate jewelry expert. regards rolfe
