- Calypso Oval Mystic Topaz And Diamond Ring In 10K White Gold For WomenUS$ 319.00Total diamond weight .08ctMargaret 14K White Gold Oval Mystic Topaz and Diamond Halo RingUS$ 525.00Total diamond weight .15ctEclipse 14K Yellow Gold Oval Lab Grown Emerald and Diamond Halo Birthstone RingUS$ 825.00Total diamond weight .17ct