Great pair of 14k white gold round red ruby cubic zirconia stud earrings with prong setting. Ruby is the July Birthstone. The earrings are solid gold, not plated, filled, or dipped and they are secured with standard butterfly pushbacks. These 14k gold earrings are available in cubic zirconia stone sizes from 1.5mm-9mm. The earrings in the photos are 6mm studs. Depending on the size chosen; they are a great option for babies, children, teens, or adults who want a nice pair of studs. Top quality AAA grade Super Bright CZ stones make a huge difference - they really sparkle!! Remember a millimeter (mm) is very small, approximately the width of a credit card (1.5mm-3mm are very small). 11-14WE-RURDPR-PB