Two rings

one ring in platinum-mix set with a faceted sapphire weight ca 4.00 cts and a triangular-cut diamond weight ca 1.25 cts quality ca G/H si and eight-cut diamonds, size 17/53, total weight 7 g, one ring in 18K white gold set with a triangular-cut diamond 1.39 cts according to engraving quality ca G/H si, size 17/53, total weight 9 g, by JP, Stockholm 1970.