18ct bi-colour gold, yellow sapphire and diamond brooch, Buccellati, centring a cushion-shaped sapphire weighing approximately 8.50 carats set in a textured collet framed by an open work cluster of foliate motifs accented with circular-cut diamonds mounted in a sculpted gold surround bordered by a scalloped filigree foliate pattern decorated with circular-cut diamonds, approximately 39 x 43 mm, signed Buccellati, Italy, numbered 96.