Hallmarked: 9ct Gold
Assay Office: London 
Makers Mark: CG
Size  M (EU 54 US 6.5)
Weight: 2.1g
Diamonds: 3.8mm (0.25ct) 6 x 1mm, 2 x 1.5mm (0.06ct) total approx diamond weight 0.31ct.
Good clean Vintage condition.