A mother of pearl cab is set in a decent heavy amount of sterling silver. this is just shy of being a size 7 ring. It's solid. No stamp as it's old Pawn but the jeweler stamp says the artist is Vera Luna and she is Zuni. A great ring without being too femme. It's likely a 6.5-6.75, may fit a seven comfortably but might be just slightly smaller. At least 80 years old. Obviously hand made. More masculine than feminine but as always unisex.