This single stone diamond ring is set with an early round brilliant cut diamond, circa 1920's era.  The diamond is in a white claw setting to a white basket mount which has a wavy gallery and raised pierced shoulders to a plain polished "D" shaped, cross-sectioned band that is 2.5mm wide.  It was hallmarked as 950 grade platinum in London 2001.  
The diamond is 2.43ct and has colour and clarity assessed as K-L and VS2.  
The ring finger size is 6 1/4 (US/Canada) or M1/2 (UK/Australia) although some resizing is possible.  
 
Please contact us for price.