Description Sterling Silver Onyx Ring. Made from solid sterling silver with onyx stone. Made for Knickerbocker in New York City by LHN Jewelry. Details Solid sterling silver. Size 7 measures 17.3 mm, size 8 measures 18.1 mm, size 9 measures 18.9, size 10 measures 19.8 mm, size 11 measures 20.6 mm and size 12 measures 21.4mm.