Navajo handcrafted inlay ring. Designed by renowned artist Calvin Begay. Made of solid sterling silver with a inlay pattern called the "Night Sky collection". The black you see is a fossilized wood called Jet, the iridescent colors are a cultured opal and the round stars are sterling silver. The unique inlayed area has a curved end measures approximately 1/8" x 5/8". Perfectly sized and comfortable to wear.