10 Karat Yellow Gold, Diamond & Ruby Brooch Designed as a horse and carriage, decorated with blue and black enamel, set with a brilliant cut round ruby weighing 0.04 carats accented by rose cut diamonds weighing a total of 0.12 carats and a square step cut quartz weighing 0.13 carats 10 karat yellow gold 1 1/2 inches (length) 0.32 ounces (total weight) Due to the limitations imposed by a mounting all diamond and gemstone weights are approximate.