Antique brooch in 18 kt platinum 950 gold, natural and brilliant pearls with blue sapphires

Circa 1920
Material: 18 kt gold and 950 platinum
2 natural pearls of 4.5 mm each of excellent color
9 brilliants 1 of 0.20 ct half cut 4 of 0.04 and 4 of 0.03 ct each and 52 diamonds of 0.01 ct
Total 1ct
26 natural princess cut sapphires of 0.02 ct each of excellent color and purity
Total 0.52ct

Weight: 9.7 grams
Measures 3.1 cm wide, 2.6 high
Sealed piece in excellent condition