I assume that this belt buckle is sterling but it is not stamped as such. Many of the older Native American pieces were not. It has a stamped design and is inlaid with chips of turquoise and coral. It is stamped on the back what looks like a double "J" with a "B" next to it. Wasn't able to find any info on this particular artist. It measures 2 5/8" X 1 1/2". I polished it slightly since it was so dark that the stones weren't showing up. Very nice condition. Weight is 30.66 grams.