The buckle is sterling silver and handcrafted by an artist, we had custom made for us for over 25 years. He goes by the name Ghostown. He has retired and stopped making pieces in the early 2000's. The buckle is one of one, he made a bolo tie to match. All his pieces are signed stamped, with a serial numbered, so he never made any two pieces the same. The artist used sleeping beauty turquoise, lapis, 140-million-year-old dinosaur and 1920 sterling silver half dollars that he melts and puts as the spaceship.