- Lumina 14K Rose Gold Oval Sapphire and Diamond Halo Ring For Women$1,800.00Total diamond weight .17ctCountess Oval Shape Blue Topaze & Double Diamond Halo Ring in 14k Gold 2-Tone Yellow & White$1,250.00Total diamond weight .32ctLeonora Blue Topaz and Diamond Halo Ring in 14K White Gold Ring$1,000.00Total diamond weight .18ct