1.34 Blue Sapphire Halo Engagement Ring Two-Tone 14kThis halo engagement ring features a 1. 34 carat cushion cut blue sapphire and . 32 carats of diamonds in 14 karat two tone gold. The cushion cut sapphire displays a rich blue color and sits in a protective bezel setting. Round brilliant cut diamonds form a sparkling halo around the center stone, creating contrast against the warm yellow gold band. The Victorian inspired design pairs 14 karat white gold at the halo with a 14 karat yellow gold shank.