A platinum diamond halo ring, A platinum diamond halo ring, the brilliant-cut diamond weighing 0.31ct within a similarly cut diamond halo surround and shoulders, estimated total diamond weight 0.60ct, hallmarks for Birmingham, ring size L1/2, gross weight 3.5g. Accompanied by GIA report no. 1889003103 dated September 2014, stating that the principal diamond is D colour, VS1 clarity.