Beautiful Estate 14K White Gold Champagne Diamond Heart Pendant Necklace. This piece features 19 brilliant round diamonds, totaling .13 carats and 16 champagne round diamonds, totaling .19 carats. The slide measures 3/8 of an inch long by 3/8 of an inch wide. The necklace weighs 2.57 grams. The chain is 18 inches long.