A Belle Époque diamond tiara, to the centre three diamond-set clusters with diamond-set foliate decorations and one large diamond-set cluster on each side, all within a waved frame of rose-cut diamonds in fine milgrain setting, the top with a line of old-cut diamonds graduating from the centre, the European, old mine and rose-cut diamonds estimated to weigh 50 carats in total, all set in platinum, to a platinum wire frame bearing later French marks, circa 1910, measuring approximately 5.6cm…