Platinum gold sapphire diamonds floral brooch

platinum and 18k white gold, four leafs flower motif set with 4 oval sapphires totalling approx. 19.00 ct, surrounded by 108 round brilliant cut and tapered cut diamonds approx. 2.30 ct, E-F, IF-VVS. Hallmarked "dog's head turned to the right and eagle's head turned to the top".
Dimensions 30 x 30 mm. Weight 13.6 g.
Item condition grading: ***** excellent (as new).
Accompanied by IGN, Istituto Gemmologico Nazionale jewelry report.