Marguerite ring in platinum, emerald and diamond

A 950 platinum maguerite ring set with an emerald and diamonds. One emerald, approximately 2.90 carats in total weight, is surrounded by twelve old-cut diamonds, approximately 1.08 carats in total weight (each diamond approximately 0.09 carats). Width at the top: 1.71 cm. Ring size: 58. Total weight: 5.14 g. Hallmarked with a wolf's head. Excellent condition.