Tanzanite gemstones lend a touch of luminous violet color to these white gold stud earrings. The design features 5-mm trillion-cut tanzanite gemstones prong-set in 14-karat white gold earrings. Posts and butterfly clasps secure the earrings. Update your jewelry collection with quality gemstone pieces from Overstock.com. All carat weights and measurements are approximate and may vary slightly from the listed information. Treatment code E. See Gemstone Treatments for further information.