EXCEPTIONAL SAPPHIRE AND DIAMOND BROOCH, CARTIER Octagonal step-cut sapphire of 39.19 carats, rectangular and circular-cut diamonds, platinum and gold (French marks), 3.0 cm, maker's mark AGL, 2019, report no. 1102270: 39.19 carats, Ceylon, no indications of heating, no clarity enhancement, royal blue, Appendix letter Gübelin, 2019, report no. 19050150: 39.19 carats, no indications of heating, royal blue, Appendix letter SSEF, 2019, report no. 106791: 39.194 carats, Ceylon, no indications of heating, royal blue, Appendix letter
EXCEPTIONAL SAPPHIRE AND DIAMOND BROOCH, CARTIER Octagonal step-cut sapphire of 39.19 carats, rectangular and circular-cut diamonds, platinum and gold (French marks), 3.0 cm, maker's mark AGL, 2019, report no. 1102270: 39.19 carats, Ceylon, no indications of heating, no clarity enhancement, royal blue, Appendix letter Gübelin, 2019, report no. 19050150: 39.19 carats, no indications of heating, royal blue, Appendix letter SSEF, 2019, report no. 106791: 39.194 carats, Ceylon, no indications of heating, royal blue, Appendix letter
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