An antique diamond brooch attributed to Coulon, in the form of a stylised rose, set with swirling ro
An antique diamond brooch attributed to Coulon, in the form of a stylised rose, set with swirling rose diamonds centring an old brilliant cut diamond, against an oxidised sliver trellis Leon-Alphonse-Auguste Coulon, was a former employee of Boucheron who entered into a partnership with Boucheron’s designer Jules Debut. 4cm across.Paris, circa 1900. Wartski, 14 Grafton Street -- source link