Pearl Tension Ring - Fresh Water AAA Grade Pearl set in a Sterling Silver Tension Ring sized to fit. The ring has a hammered and marbled pattern along the outside of the shank. The inside of the ring has a satin finish for comfort. The Ring Measures 4mm in width at the widest part of the shank. The shank is 2mm thick. The Fresh water pearl is a AAA grade pearl of a very high quality. UK Hallmarked as proof of quality.