A truly elegant piece, we think this versatile opal necklace is a beautiful addition to both an evening or daytime look. Made of gold plated sterling silver, 7 opal crystals are decorated along the length of the chain, with each crystal measuring 5mm in size. They are spaced out evenly along the necklace and are held in a rub over setting, which puts the full focus on the CZ crystals without anything to detract from them. It's 16 inches with an additional 2 inch extender, 1mm thick and stamped with 925 for sterling silver.