Emerald and Diamond Halo Ring Emerald 0.48 ct. Round Diamond 0.73 ct. Baguette Diamond 0.75 ct. 18K White Gold Other Products. Black Diamond Studs Earrings 18K Black Gold More Detail Tension Set Diamond Ring Diamond 0.50 ct. GIA Certified D VS1 3 Excellent 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 Etenity Ring Diamond 1.07 ct. 18K White Gold More Detail