Nice, high domed natural chalcedony  is edged with a tanzanite and keshi pearl fringe. Metal is argentium sterling silver.* This ring measures a size 8 1/4 on a simple band.

*Argentium sterling silver is a silver alloy where most of the copper has been replaced by germanium which lends greatly enhanced tarnish resistance over standard sterling. It is .935 silver--more pure silver than .925 sterling. In addition, argentium sterling is produced using only recycled silver.