Labradorite Gemstone 925 Sterling Silver Handmade Ring Size 8.5 This ring features a pear-shaped labradorite gemstone set in a handmade 925 sterling silver band. The labradorite is a feldspar mineral known for its optical effect called labradorescence, where vibrant flashes of blue, green, and other colors appear as light hits the stone from different angles. The silver band has a decorated bezel setting, with a border of small, round, raised silver details around the stone.