0.82-0.94 Cts of 5 mm AA Round Aquamarine Stud Earrings in 14K Yellow Gold-Screw Backs Timeless studs to go with every outfit- formals, casual or party. The studs have a fine AA quality round Aquamarine each prong-set in 14K Yellow Gold. Aquamarine is a blue beryl and the March Birthstone. Its color ranges from pale blue to beautiful aqua blue, deep sky blue stones are most valuable. 30 Day No questions asked Return Policy Free-Shipping within US March Birthstone/ Birthday/Anniversary Gift