Beautiful platinum ring (850) centered on an openwork geometrical motif paved with eight-eighths-cut diamonds and punctuated with old-cut diamonds in a closed pearl setting, the central one more important, between two white pearls. Circa 1910-20. Gross weight: 5.3 g. - Finger size : 47. It is accompanied by a certificate from the French Gemological Laboratory indicating : Fine sea water pearls, no indication of treatment, creamy white color, very good luster. Reduction beads, crack in the skin of one of the two beads.