A LATE VICTORIAN TO EARLY TWENTIETH CENTURY THREE STONE DIAMOND RING, centre old cushion diamond

A LATE VICTORIAN TO EARLY TWENTIETH CENTURY THREE STONE DIAMOND RING, centre old cushion diamond estimated weight 1.26cts, the two outer old cushion cut diamonds 0.87cts each, overall diamond weight assessed as 3.0cts, colour assessed as L-M, clarity SI1 - I1, ring size N½, stamped '18ct Plat' (Condition Report:- Central diamond measurements approximately 6.7mm x 6.4mm x 4.7mm, central stone I1, all have some naturals to the crown facets/girdle)