BERRICLE Rhodium Plated Sterling Silver Halo Heart Engagement Split Shank Ring Set Set w/Swarovski Zirconia METAL: rhodium plated silver, stamped 925, high polished finish, nickel free. RING BAND WIDTH: 3.5mm. PREMIUM QUALITY STONE: Main Stone: 0.46 carat round cut clear Swarovski zirconia (5mm) STYLE: This 2 piece halo heart split shank ring set illuminates with striking radiance and intricate flair. STYLE: Petite - This ring is dainty with small carat weight. Engagement - Ideal for engagement, this ring will be perfect for your special one.