CZ: This is a cubic zircon ring in 925 sterling silver. This ring is marked 925 Main stone is 6.5mm,about 1.0ct. Moissanite: 6.5mm round cut D-E-F color Charles & Colvard Forever One Moissanite (comes with certificate of authenticity) 3X1.5mm marquise cut moissanite side stone Clarity: VVS The underneath of this ring is stackable.If you want a matching band,you can ask me custom make it. I accept custom making order.Please contact me if you need this service. For all the jewelries,there is a 14 days money back guarantee.You can return it in the time frame without any questions.However there maybe handcrafted fee and shipping fee deducted from the original payment as it is handmade.