18K White Gold Diamond Station Necklace with Ruby Slice and Diamond Pendant. This unique Pendant has a center ruby slice which equals 53.96 carats and is surrounded by round brilliant diamonds. The necklace is a 20 inches Diamond Station Necklace with a total of 20 Diamonds which weigh approximately 3.00 carats. The necklace is adjustable and can be work at 18 inches also.