3/4 Carat 3 Prong Round Diamond Martini Stud Earrings in 14k White Gold (0.74 Carat) - IGI Certified Also available in all other diamond clarity & all other metal kt. IGI Certified Diamond Stud Earring. 14K White Gold Stud Earring. Best jewelry for all occasions and outfits. Elegantly packaged in a lovely jewelry box.