A gold and platinum, diamond set four stone ring and two further rings (3)

The diamond four stone ring detailed 18 CT PLAT, ring size N, gross weight 3.8 gms, an 18ct gold ring, star set with a cushion shaped diamond, ring size N and a half, gross weight 4 gms and a 9ct gold and colourless gem set five stone ring, ring size O, gross weight 3.4 gms