BERRICLE Rhodium Plated Sterling Silver Round Cut Cubic Zirconia CZ Solitaire Engagement Ring Set METAL: rhodium plated silver, stamped 925, high polished finish, nickel free. RING BAND WIDTH: 4.75mm. PREMIUM QUALITY STONE: Main Stone: 1 carat round cut clear cubic zirconia (6.5mm) STYLE: This 2 piece solitaire ring set's simple elegance is what makes this style so special. STYLE: Engagement - Ideal for engagement, this ring will be perfect for your special one.