Impressive Peruvian opal necklace.ID#: NEC082Peruvian Opals: Fifty-three (53) very large fully drilled and polished roundelle shaped stones.?Colors ranging from brown to terra cotta?and blue to turquoise (earth tones).?Beads are approximately 20mm in diameter.Clasp: Large sterling silver spring ring?Length: 24"?Weight: 253.1g