Barrette brooch in 18k (750 thousandths) white gold paved with 8x8 round brilliant-cut and princess-cut diamonds. In the centre, a cabochon of pale blue natural star sapphire (six-pointed asterism) weighing approx. 20 ct. Cavity under the cabochon and frost on the side extending under the stone. Jewel slightly deformed. Cabochon size: approx. 16.66 x 11.70 x 11.11 mm. Length: 6.2 cm. Gross weight: 15.3 g.