Carolyn Pollack Sterling Silver Oval Howlite Cabochon Decorated Stud Earrings For Women. Measure 3/8" X 1/2" and weighs 3.6 grams. ** Stones are natural, therefore matrix and color shades may vary. ** ** If oxidation or tarnish darkens the piece over time, use a polishing cloth to restore to desired finish. ** (CPER26E35)