Esti Frederica, New York designer, 18K yellow gold and sterling silver ring. This fantastic ring features a medallion of a Roman soldier in profile in 18K gold. It is set into a heavy sterling silver setting that has great architectural details. This ring is a size 6, measures 15mm north to south, 17.5mm wide, and weighs 12.5 grams. The inside of the band is marked Esti Frederica, 18K and 925. It dates to the early 1990's. It does show some wear from use, as seen in the photos, but is otherwise in great condition.