0.78ct flawless gia solitaire f colour

A bespoke certified diamond solitaire ring, the marquise cut diamond within four claw 18ct white gold setting edge, leading to plain polished shank, stamped possibly 'HM' ring size J, 3.3gms, with photocopy of GIA report from 2014 stating diamond to be 0.78ct, F colour and internally Flawless the diamond has laser inscription