KAT FLORENCE unique ring with cornflower blue sapphire of 3.14 ct, Sri Lanka, no indication of heating, 152 brilliant-cut diamonds totalling 1.75 ct, EW+ (D)/IF, NP:; ca. 50,000 €, 18K YG, 7.8 g, 21st century, minimal signs of wear, incl. Bellerophon gemstone report, Kat Florence certificate and drawing.