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A belle epoque aquamarine and diamond brooch/pendant, circa 1910 The openwork cartouche set with rose-cut diamonds and pear-shaped aquamarines, suspending a cicular millegrain-set old brilliant-cut diamond swag centre and terminating in three collet-set rose-cut diamond and pear-shaped aquamarine drops, mounted in silver and gold, diamonds approx. 0.70ct. total, length 6.0cm.
An early 20th century sapphire and diamond brooch pendant The openwork plaque of fine knife-wire, millegrain set brilliant and single-cut diamond detail, its centre issuing a stylised scroll of similarly set diamonds and calibré-cut sapphires, to an oval mixed-cut sapphire drop, diamonds approx. 4.00ct. total, length 8.0cm.
A belle époque sapphire and diamond brooch, circa 1905 In the Garland Style, composed of two old brilliant and rose-cut diamond wreaths with millegrain detail, each surrounding a cushion-shaped sapphire drop, connected by a rose-cut diamond fluttering ribbon with oval-cut diamond terminals, diamonds approximately 5.60 carats total, signed Cartier Paris to the edge of the sapphire collet.
A diamond spray brooch, circa 1965 Set with graduating ribbons of brilliant, baguette and single-cut diamonds, diamonds approximately 7.00 carats total, French assay marks