Pair of ladies' 14k yellow gold tanzanite stud pierced earrings with friction backs, with two blue violet vivid color, GIA Type I Clarity VS, oval tanzanites. The tanzanites have a total weight of 3.97 carats, measure 7 mm wide by 9 mm long, and are 4 prong set. The earrings weigh 2.2 grams. Heavy friction back for added security.