39 - An important 18k white gold and diamond Belle Epoque tiara within it's original case by Hubert Martincourt, Paris.

An important 18k white gold and diamond Belle Epoque tiara within it's original case by Hubert Martincourt, Paris. Curved hoop with seven graduated stylised floral motifs alternating with six smaller floral motifs, fully set with diamonds totalling approx. 22.69 ct. The bangle set with 16 old-cut diamonds totalling approx. 2.4 ct (K/L colour, VS/SI clarity) and 36 rose-cut diamonds; the leaves set with small old-cut diamonds totalling approx. 6.34 ct (approx. K/L colour, VS/SI clarity), together with small rose-cut diamonds. The central motif set with three large old-cut diamonds (approx. 2.3 ct, approx. 8.1 × 7.94 × 5.61 mm; approx. 2.55 ct, approx. 8.84 × 8.80 × 5.39 mm; approx. 2.68 ct, approx. 8.87 × 8.80 × 5.58 mm, K/L colour, VS/SI clarity). The four flanking central flowers set with old-cut diamonds weighing approx. 1.75 ct, 1.70 ct, 1.5 ct and 1.47 ct respectively (K/L colour, VS/SI clarity). Hallmarks: Parisian guarantee mark, “tête d’aigle”, maker’s mark “GC” with a bee in a horizontal lozenge. The finial partially slightly warped, one small leaf missing. Diameter 9.0 cm. Maximum height 5.5 cm (excluding the copper hairband). Maximum overall height 7.0 cm. Total weight 66.0 g. Original fitted case with blue leather covering, the lining stamped “Hubert Martincourt, Georges Carl’ Entier Suc’, 41, Rue Richelieu, Paris”. Georges Carpentier, Paris, c. 1910. Provenance By descent through the family of the French Romantic poet Alphonse de Lamartine and still in the family’s possession today.