Genuine Blue Sapphire Stud Earrings, 3x5mm Natural Mined Sapphire Earrings. These earrings contain natural Sapphire's measuring 3x5mm, and high quality cubic zirconia's. These earrings are 925 sterling silver and platinum plated, also available in gold or rose gold plating. This item includes a gift box and a certificate of authenticity with purchase. This item is made to order, please allow up to 10-15 days for processing and delivery of this item.