The stones have a translucent, milky bluish to greenish color. Due to the stones being translucent the metal that surrounds the stone does impact the overall color of the earrings. The sterling silver makes the stone look a cooler gray tint while the gold fill makes it have a warm pink tint. OPAL STONES: Diameter: 1/4 inch Depth: 1/8 inch EARRING METAL: 14/20 GOLD FILL: A thicker layer of actual gold over base metal. Nickel free & lead free.