14k yellow gold. Four prong set oval rainbow moonstone fine cabochon. Set around the center are 18 full cut diamonds. Set down the shoulders are 6 full cut diamonds (in a 3+2+1 pattern, total 12) for a total of 30 full cut diamonds weighing in total approximately .30 ct. Clarity SI1-SI2. Color H-K. Total approximate gold weight 2.45 dwt.