MELLERIO. Brooch clip of lapel in platinum 850 thousandths and 18k white gold, in the form of a trilobate knot with bangs. The center is a triangle composed of three diamonds in the form of cousin and old size of about 0.30 ct and 0.50 ct. The three ribbons are set with one hundred and eight small 8/8-cut diamonds and three cushion-shaped and old-cut diamonds, each weighing approximately 0.05 ct and 0.15 ct. Signed and numbered 535318. Early 20th century. Diameter: 4 cm - Gross weight: 24.1 g