Antique picture locket with checker board design in silver and rose gold color. I am not sure what the metal is on this antique locket. The checker board design is done in a textured silver and rose gold color. The term for this use of metals may be Niello. Our charming estate locket measures .75'' x one and one eighth of an inch. Inside you will find one frame and cover but two spots for pictures. The antique locket has been added to a 19.5'' modern chain. age appropriate wear.