Mix up your necklace stack with this square gemstone pendant. Vibrant Green Chalcedony for courage and insight is the perfect pop of colour. 18k Gold Plated, Recycled Sterling Silver Gemstones: 8mm x 5mm Green Chalcedony for courage and insight, Created White Sapphires Pendant is 10mm x 9mm Adjustable Chain Length: 16" with 2" extender, lobster clasp