Diamondcrossover ring. Diagonally set with two drop shape old cutdiamonds in open backclaw settings with a combined approximate weight of 1.80 carats, bordered by eight rectangular baguette cut diamonds in open back rubover settings with a combined weight of 0.40 carats, and further enhanced with twenty eight round old cut diamonds in open back grain settings with a combined weight of 0.80 carats. The total approximate diamond weight is 3.00 carats, to an elegant crossover desgn featuring polished edges, an openwork gallery and fancy shaped open backholing, leading to trumpeting shoulders and flowing through to a solid shank. Testedplatinum, circa 1940.