Flush Set Black Diamond Ring in 18K Black Gold Flush Set Black Diamond Ring in 18K Black Gold Other Products. Diamond Studs Earrings Round Diamond 0.72 ct. Baguette Diamond 0.79 ct. 18K White Gold More Detail Diamond Earrings 0.56 ct. Diamond Earrings 18K Pink Gold More Detail Black Diamond Rings 18K White Gold More Detail Three Row Diamond Ring Diamond 0.30 ct. 18K White Gold More Detail