Add an effortlessly darling finishing touch to your look with these earrings - featuring color changing mood stones. MOOD STONES: Material: glass with thermochromic liquid crystal Diameter: 5/16 in EAR BEZEL & POST: Diameter: 7/16 in Nickel free & lead free. • STAINLESS STEEL: a form of steel that's resistant to tarnishing. Hypoallergenic. • GOLD PLATED: a thin layer of actual gold over base metal. • ROSE GOLD PLATED: a thin layer of actual rose gold over base metal.