Stunning Peruvian Opal Semi-Precious Single Stone Pendant Necklace Set with Matching Opal Earrings SEMI-PRECIOUS STONE: Peruvian Opal is abundant in South America and makes for a stunning and original necklace set NEVER TARNISH: Alpaca Silver never tarnishes and does not typically need cleaning. UNIQUE and STYLISH: You will attract attention with this unique jewelry set. HANDMADE BY ARTISANS: Peruvian jewelry is handmade by local artisans.