Rose Quartz and Diamond Halo Ring in 18K Rose Gold Rose Quartz and Diamond Halo Ring in 18K Rose Gold Other Products. Solitaire Ring Diamond 0.82 ct. GIA Certified G VVS2 3 Excellent 18K White Gold More Detail Emerald and Diamond Halo Ring Emerald 0.48 ct. Round Diamond 0.73 ct. Baguette Diamond 0.75 ct. 18K White Gold More Detail Black Diamond Rings 18K White Gold More Detail Eternity Ring Round Diamond 0.37 ct. Baguette Diamond 1.02 ct. 18K White Gold More Detail