Ross-Simons - C. 1990 Vintage 4.50ct Citrine, 1.00ct t. w. Diamond Pendant Necklace in 18kt, Gold. 16". C. 1990. This ornate pendant necklace from our Estate collection glitters with a frame 1.00 ct. t. w. round brilliant-cut diamonds. The 18kt white gold pendant embraces the central 4.50 carat oval citrine, which gives off a warm, bright hue. Pair it with a cocktail dress for a fabulous party look! Suspends from a 14kt white gold cable chain. Lobster clasp, diamond and citrine pendant necklace. Exclusive, one-of-a-kind Estate Jewelry. Citrine birthstones are the perfect gift for November birthdays.