Emerald and Diamond Halo Ring Emerald 0.48 ct. Round Diamond 0.73 ct. Baguette Diamond 0.75 ct. 18K White Gold Other Products. Tennis Bracelet Diamond 8 ct. 18K White Gold More Detail Rose Quartz and Diamond Halo Ring in 18K Rose Gold Rose Quartz and Diamond Halo Ring in 18K Rose Gold More Detail Golden South Sea Pearls and Diamond Halo Earrings Golden South Sea Pearls and Diamond Halo Earrings in 18K Yellow Gold More Detail Black Diamond Rings 18K White Gold More Detail