9ct Yellow Gold 0.29ct Round Rub-Set Amethyst Stud EarringsA popular gift for a loved one born in February, these earrings feature two round amethysts totalling 0. 29ct. The two gemstones are secured with a sleek rub setting, giving these earrings a smooth profile and feeling on the ear. Set into 9ct yellow gold, the warmth of the metal compliments the rich purple hues within the amethysts. A rich purple such as this looks exceptional on those with medium to dark skin tones, as well as those who are fair.