Sterling Silver Pearl Double Drop Earrings . Birks Rock & Pearl® Double Drop Earrings glow with charm and sophistication. These sterling silver earrings feature 7 mm and 8 mm round freshwater pearls that delicately descend on two silver chains from silver studs. Their gentle movement is part of their grace, and their simple design fascinates. They're part of the Birks Rock & Pearl® Collection, a collection of women's jewellery that finds inspiration in the stunning contrasts that characterize the splendor of Canadian nature. The rocks that form our majestic mountains and the pearls found in our pristine bodies of water give shape to this aesthetic of contrasts. Enchanting and feminine, these sterling silver earrings are pure delight.