A Diamond Five Stone Ring the graduated old cut diamonds in white square settings, to a tapered

A Diamond Five Stone Ring the graduated old cut diamonds in white square settings, to a tapered shoulder plain polished shank, total estimated diamond weight 1.55 carat approximately finger size N1/2 The ring is in good condition. It is stamped 'PLAT' and in our opinion would test as platinum. The central diamond measures 4.76mm x 4.72mm x 3.31mm approximately. The approximate qualities of the diamonds are; colour I/J/K, clarity I1/I2/I3. Gross weight 5.1 grams. CR made 13.01.22.