Diamond Studs Earrings Round Diamond 0.72 ct. Baguette Diamond 0.79 ct. 18K White Gold Other Products. Two Row Half Eternity Ring Diamond 0.40 ct. 18K White Gold More Detail Black Diamond Studs Earrings 18K Black Gold More Detail Three Row Diamond Ring Diamond 0.30 ct. 18K White Gold More Detail London Blue Topaz and Diamond Halo Ring Blue Topaz 3.8 ct. Diamond 0.43 ct. 18K White Gold More Detail