Gorgeous 14K White Yellow Two-Tone Gold Diamond Peridot Earrings. Each great piece features one natural round peridot, black quartz and numerous round diamonds. The total weight of the peridots and quartz is 1.58 carats and diamonds total to .08 carats. Each earring measures 3/4 of an inch long by 3/8 of an inch at it's widest point. The pair weighs 3.3 grams.