The marking inside reads "SC". This is really a uniquely gorgeous piece, with ivory colored and sage green. You could make it into a ring or pendant for a necklace. The gold did not test real, and the coloring on it appears to be from the glue aging. Measures approx 1 1/8" in diameter. Great timeless piece... Thanks for stopping by and may you know the Lord's loving healing presence in your life 🤗