This is a ring with a cabochon-cut stone in a bright blue-green color. The type of stone is unknown, but its color and texture suggest it may be turquoise. The inside of the ring is stamped with "**STERLING**," indicating it is likely made of sterling silver (SV925). It has a vintage-like tarnish and texture, giving it a nice atmosphere. We have not had it appraised, so the details of the material and gemstone are unknown. Please purchase only if you understand that this is a used item and has been stored at home. - Color: Turquoise - Material: Sterling Silver Thank you for viewing.