0.23-0.30 Cts of 2.50-3.00 mm AA Princess Black Diamond Mens Stud Earring in 18K White Gold The diamond is AA quality princess-cut natural-heated treated diamond. 99% of the diamonds are treated to improve color. AA quality black diamonds have a nice black color, clean-glossy surface and a proportionate cut. Also available in screw backs and as a pair. The price is for a SINGLE Stud and not a pair. 30 Day No questions asked Return Policy Free-Shipping within US April Birthstone /Men's Jewelry / Men's Gift Idea / Men's Stud Earrings