Vintage Mexican Sterling Silver Lapis Lazuli Tribal Sun Ring Size 6.5

This is a Mexican ring that features a sun and at the center is a natural Lapis Lazuli stone. It is used and has some wear, but overall nice shape. The lapis is very natural looking and has some inclusions and divots which can be seen in photos. Signed with a silver mark and the initials FCC. Size 6.5. The lapis measures approx. 3/8" in diameter. The sun portion measures approx 5/8" in diameter