Native American Sandcast Belt Buckle Silver . Native American made belt buckle in the sandcast technique. The buckle is NOT made of sterling silver. It is shiny silver in color--brighter than the pics show. Lovely piece my mother purchased in NM, probably in the late 1980's or early '90's, for my dad or brother, but it was never worn. Approximate measurements: length: 3.5" width: 2.25"