Silver Boulder Opal Necklace “18ct White Gold Diamond Necklace” has been added to your cart. View cart SOLD Silver boulder opal necklace, a natural purple-ish/blue/white Australian boulder opal set in silver free-form frame. Very unique design. Size: Pendant H40mm x W22mm Silver Chain is 49cm long. Total Weight: 22.9 grams Categories: Necklace, Opal Tags: necklacr, opal Related products 18ct Gold South Sea Pearl Necklace $3,380.00 Add to cart Rose/Yellow Gold Vintage Necklace $990.00 Add to cart 18ct Solid Yellow Gold Necklace $3,590.00 Add to cart 18ct Yellow Gold Twisted Rope Chain $5,765.00 Add to cart