The earrings are made of 14k white gold. Each earring consists of one natural round blue sapphire that is bezel set. The sapphires weigh 0.51 carats total weight. Each sapphire is surrounded by 12 round diamonds that are prong set. The diamonds have a "G" color and an "VS1" clarity grading. The carat weight of the 24 diamonds is 0.24 carats total weight. The earrings measure 8 millimeters. The posts are not threaded. We will provide a earring box.