Large brooch in platinum, 18 kt yellow gold, diamonds and natural Burmese ruby

Cushion cut ruby of approximately 3.55 ct, trapezoidal cut rubies of 1.63 ct, rose diamonds and old cut diamonds of approximately 2.30 ct, the brooch is accompanied by R.A.G. certification. num J26015mn, dated 19.05.26, the yellow gold pin, from a later period, can be dismantled, 16.6 g