Smoky Quartz 5ct large gemstone split shank vintage sterling silver ring. Good used condition with little to no signs of normal wear. Great vintage patina. Split shank band. Stamped on the inside of the band Ster with an S hallmark. Stone measures 10mm by 12mm. 

Acid tests positive for sterling silver. 

Gemstone tested with Presidium II gemstone tester. 

Ring measures size 6 and 1/2.