This necklace is made with beautiful golden sheen obsidian. Obsidian is a volcanic glass that is naturally formed when volcanic lava quickly cools. Air bubbles are trapped inside the layers during the cooling process creating a highly desired shimmering effect-the golden sheen. This stone has an amazing highly polished finish with golden sheen reflections seen at varying angles. This necklace is made with large 20mm flat round stones, each separated by a small gold plated rondelle. And 12mm flat round golden sheen obsidian stones.This necklace measures 18 inches long and has a gold plated hook and eye clasp.There is a matching bracelet and earrings listed separate.