American yellow gold platinum and diamond 40's ring

A 14ct yellow gold platinum and diamond rectangular across finger design of two concave squares surmounted by a central small rectangular convex shape with 26 diamonds of an approx total carat weight of 2.95cts - total weight 11.05grms - dimensions of face 23 x 13mm - currently size M (USA 6) - due to design limited resizing available - please enquire - c.1945 USA