This ring is a beautiful bezel set Boulder Opal set in sterling silver. This type of opal is characterized by the opal material being intimately attached to or within its natural host rock (ironstone or sandstone), forming a single piece. This stone shows a significant amount of matrix material surrounding the opal, which is consistent with boulder opal. This gives the stone a distinctive appearance with flashes of color within a darker matrix. It has a surrounding hammered texture visible on the bezel, which enhances the ring's artistic appeal. Size 8.75 6.2 grams Stone is 1/2” X 11/16” #boulder opal #hammered #sterling silver