Brushed Silver Opus Cufflinks. Cufflinks constructed of .925 sterling silver. Stylish and fun. These Cufflinks are made from rare Madagascan Ammonites, the Ammonites are split down the centre and then polished to give a smooth and classy finish. The detail is so perfect, you'll love them as much on your counter as you do on your cuffs.Get them engraved for added personalization or to memorialize a special occasion.Cufflinks by Ravi Ratan.