Fabulous 14K White Gold Ruby Rubies Diamond Art Deco Pendant Necklace. This great piece features natural round rubies, weighing .21 carats and numerous brilliant round diamonds, totaling .93 carats. The pendant measures 7/8 of an inch long by 5/8 of an inch wide. The necklace measures 18 inches long. It weighs 4.5 grams.