Classic metal hits a glam slam with sexy settings

Top: 18-karat green-gold band with 0.2-carat cognac diamonds, about $1,100, Kathleen Dughi Jeweler, kathleendughi.com. Middle: 18-karat rose-gold band with 0.2-carat cinnamon diamonds, about $900, Kathleen Dughi Jeweler, kathleendughi.com. Bottom: 18-karat yellow-gold band with 0.2-carat yellow diamonds, about $1,650, Kathleen Dughi Jeweler, kathleendughi.com.