In very good condition  a peridot gold ring, three peridot stones separated by seed pearls. 
Curlicue Gallery setting. 
Plain shank. 
The central peridot has some inclusions - visible with a magnifying glass and in the enlarged photos. 
Makers marks and hallmarks for Birmingham 1968. 
Size N1/2 UK,  7 US. 
Weight 2.19 gm. 
Maximum width 5.2mm
Very attractive light green stone in a very attractive ring. This period  currently represents exceptional value for money