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SAPPHIRE AND DIAMOND PENDANT-BROOCH, CIRCA 1910 The stylized laurel wreath set with numerous old European-cut and single-cut diamonds weighing approximately 3.75 carats, the center collet-set with a cushion-shaped sapphire weighing approximately 1.75 carats, mounted in platinum.

SAPPHIRE AND DIAMOND PENDANT-BROOCH, CIRCA 1910 The stylized laurel wreath set with numerous old European-cut and single-cut diamonds weighing approximately 3.75 carats, the center collet-set with a cushion-shaped sapphire weighing approximately 1.75 carats, mounted in platinum.

Platinum-Topped Gold, Sapphire and Diamond Pendant-Brooch, Marcus & Co. Centred by a pear-shaped sapphire weighing approximately 15.00 carats, within scrollwork surrounds set with old European-cut diamonds weighing approximately 4.50 carats, signed Marcus & Co., circa 1900.

Platinum-Topped Gold, Sapphire and Diamond Pendant-Brooch, Marcus & Co. Centred by a pear-shaped sapphire weighing approximately carats, within scrollwork surrounds set with old European-cut diamonds weighing approximately carats, signed Marcus

PLATINUM AND DIAMOND BROOCH, CIRCA 1900 Of openwork design set with old European-cut, old mine and rose-cut diamonds weighing approximately 6.30 carats, with two pendant loops.

PLATINUM AND DIAMOND BROOCH, CIRCA 1900 Of openwork design set with old European-cut, old mine and rose-cut diamonds weighing approximately carats, with two pendant loops.

1900's Sapphire, Diamond and Enamel Jabot. The jabot is set with a cushion cut sapphire weighing 3.19 carats. It is further set with black enamel and old miner cut diamonds.

1900's Sapphire, Diamond and Enamel Jabot

Edwardian Sapphire, Diamond and Enamel Jabot, ca. - The jabot is set with a cushion cut sapphire weighing carats. It is further set with black enamel and old miner cut diamonds.

A BELLE EPOQUE DIAMOND & SAPPHIRE BROOCH. Set with a pear-shaped diamond,  approx. 3.14 carats, trimmed with calibré-cut sapphires, swinging within an old European & single-cut diamond wreath, suspending two tassels with collet-set diamond terminals, joined by an old European-cut diamond bow link, from two single-cut diamond & square-cut sapphire chains, to the old European & single-cut diamond foliate bar brooch, suspending three articulated collet-set diamonds, platinum, circa 1915.

A BELLE EPOQUE DIAMOND & SAPPHIRE BROOCH. Set with a pear-shaped diamond, approx. 3.14 carats, trimmed with calibré-cut sapphires, swinging within an old European & single-cut diamond wreath, suspending two tassels with collet-set diamond terminals, joined by an old European-cut diamond bow link, from two single-cut diamond & square-cut sapphire chains, to the old European & single-cut diamond foliate bar brooch, suspending three articulated collet-set diamonds, platinum, circa 1915.

SAPPHIRE AND DIAMOND BROOCH, CARTIER, CIRCA 1925. The elongated hexagonal motif decorated with 4 sugarloaf cabochon sapphire and 2 French-cut sapphires, completed by 8 round and 38 single-cut diamonds weighing approximately 1.50 carats, mounted in platinum, signed Cartier by wteresa

SAPPHIRE AND DIAMOND BROOCH, CARTIER, CIRCA The elongated hexagonal motif decorated with 4 sugarloaf cabochon sapphire and 2 French-cut sapphires, completed by 8 round and 38 single-cut diamonds weighing approximately carats, mounted in platinu

Emerald and diamond drop earrings art deco Classic platinum drop diamond set pendant earring with single emerald displayed within, finishing in a large step cut synthetic emerald.

Emerald and diamond drop earrings art deco Classic platinum drop diamond set pendant earring with single emerald displayed within, finishing in a large step cut synthetic emerald. - Gift for women and girls, wedding

Sotheby’s The Jewellery Collection of the Late Michael Wellby: Lot 177 – Sapphire and diamond brooch, circa 1910 Designed as an open work plaque millegrain set with calibré-cut sapphires, circular-cut and rose diamonds, indistinct marks, fitted case signed London & Ryder, 17, New Bond St., London, W.

Sapphire and diamond brooch, circa Designed as an open work plaque millegrain set with calibré-cut sapphires, circular-cut and rose diamonds.

GEM-SET AND DIAMOND BROOCH Of giardinetto design set with mixed-cut rubies, emeralds, sapphires, demantoid garnets and highlighted with variously cut diamonds.

GEM-SET AND DIAMOND BROOCH Of giardinetto design set with mixed-cut rubies, emeralds, sapphires, demantoid garnets and highlighted with variously cut diamonds.

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