Elegant and Dainty Cubic Zirconia Cz Bridal Engagement Wedding 2 Ring Set (Center Stone- .85 Ct.) Beautiful 2 piece bridal set featuring sparkling cubic zirconia simulated diamonds. Beautiful Silvertone over brass: Anti-Tarnished Center stone is 6mm round (.85 Ct) accented by 9 round CZ diamonds. Ring measures 9mm wide at top and tapers to 3mm. Total CZ diamond weight is 1.04 carats. Total set weight is 4 grams.