Ca. 1600 AD.A gold thin band with ridged shoulders, a large conical shaped bezel with sapphire, held by four gold planks holding the sapphire in place. The band rounded and modelled with incised moulded decoration. The item has undergone X-ray fluorescence analysis to confirm the metallurgical content suggesting its ancient origin and lack of modern trace elements.Size: D: 16.1mm / US: 5 1/2 / UK: L; 5.6g.Provenance: Property of a London Ancient Art Gallery; formerly in the famous Alison Barker collection, a retired London barrister; acquired between early 1960s to 1990s.