MARCHAK Platinum and 18K (750) white gold brooch-clip featuring two flowers set with rose-cut or old-cut diamonds, a heart adorned with a round brilliant-cut diamond weighing 1.78 ct. Signed. French work, 1950's. Height: approx. 5.3cm. Diamond size: 7.99 - 8.19x4.34 mm. Gross weight: 36 g The diamond is accompanied by an LFG pre-report (2026) attesting: I color, SI2 clarity, very strong fluorescence.