Express your romantic style with the lovely butterfly design of these marquise-cut lab-created opal and white lab-created sapphire stud earrings. Crafted in sterling silver each butterfly-shaped earring glistens with a pair of 5. 0 x 2. 5mm marquise-cut iridescent lab-created opal cabochons and a pair of petite shimmering white lab-created sapphires. These post earrings secure comfortably with friction backs.