Three-Prong Pear Diamond Stud Earrings - 18K Yellow Gold. A beautifully matched pair of pear diamonds are secured in classic, three-prong basket settings with comfortable posts for pierced ears. Earrings with a total carat weight of 1.00 carat or over will receive a guardian backing and earrings with a total carat weight under 1.00 carat will receive a push backing.