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A belle époque sapphire and diamond fringe necklace, the curving openwork plaque designed as a garland with a sapphire and diamond floral cluster at the centre, supporting a graduating fringe of articulated drops each with a sapphire and diamond floral termination, millegrain-set throughout with circular and mixed-cut sapphires and old brilliant, single and rose-cut diamonds, diamonds approximately 19.00 carats total

A belle époque diamond, seed pearl and diamond pendant necklace, circa 1905.

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.

Fine early 20th c. Belle Époque sapphire and diamond necklace, the principle oval mixed cut cornflower blue sapphire estimated to weigh approximately 8.66 carats, in millegrain collet setting and a border of calibre cut blue sapphires, with a further pear cut cornflower blue sapphire, approx. 3.50 carats, all in millegrain setting, suspended from diamond set bows on a trace chain. In original fitted tooled leather case, by Carrington & Co., 130 Regent Street, London.

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 pearl and diamond brooch/pendant necklace, circa 1910 The scrolling openwork plaque set with two pearls, cushion-shaped and old brilliant-cut diamonds, suspending a row of graduated collet-set old brilliant-cut diamonds, terminating in a similarly-cut diamond within a pierced Greek key motif border and a further single-cut diamond surround, millegrain-set throughout, to a fine trace-link chain, diamonds approx. 2.30cts total

A moonstone and diamond pendant The tapering pierced plaque with fan-shaped surmount millegrain-set throughout with old brilliant and single-cut diamonds, suspending a circular cabochon moonstone within a rose-cut diamond border, diamonds approx. 1.30cts total, length 5.6cm. Art Deco or Art Deco style.

A diamond bracelet, circa 1900 The articulated row of old brilliant and single-cut diamond scrolling links, set to the centre with a similarly-cut diamond circular pierced plaque, diamonds approx. 1.95ct total, length 14.4cm

A belle époque pearl and diamond pendant, circa 1905 The fleur-de-lys surmount millegrain-set with old brilliant and single-cut diamonds, suspending a grey and a white pearl connected by millegrain-set old brilliant-cut diamond spacers, terminating in an old pear-shaped diamond drop, weighing 6.97 carats, on a black cord necklace with an adjustable single-cut diamond slide, pendant length 6.0cm.

A belle époque sapphire and diamond tiara, of kokoshnik inspiration, millegrain-set throughout with cushion-shaped sapphires and old brilliant, single and rose-cut diamonds, the openwork band of foliate motifs, with a large old brilliant-cut diamond at the centre, supporting a series of graduating sapphire and diamond floral clusters below an undulating line of diamonds and surmounted by an alternating row of sapphires and diamonds, principal diamond approximately 2.80 carats,

SAPPHIRE AND DIAMOND BROOCH/PENDANT, CIRCA 1910 The surmount pierced and millegrain-set with French-cut sapphires, circular-, single-cut and rose diamonds, collet-set at the centre with a circular-cut sapphire and similarly cut diamonds, suspending an articulated pendant composed of foliate motifs and lines of circular-cut sapphires, terminating on three pear-shaped diamonds, French assay marks.

An early 20th century opal and diamond pendant necklace and ring suite The circular opal cabochon, within a single-cut diamond surround, suspended from a later line of graduated old brilliant and single-cut diamonds in collet-settings, millegrain-set throughout, to a later 9 carat white gold trace-link chain

An art nouveau sapphire, enamel and diamond brooch/pendant. The oval mixed-cut sapphire and single-cut diamond centre, within an openwork surround of scrolling enamel detail and a similarly set articulated sapphire drop, circa 1900.

A pair of cat's eye emerald and diamond pendent earrings Each formed as a series of three 'target' design plaques, two of which are set with a round cabochon cat's eye emerald surrounded by a row of brilliant-cut diamonds, the central plaque set with a brilliant-cut diamond with similar surround, all joined by brilliant-cut diamonds and circular-cut emeralds to multi-tiered settings, mounted in 18k white gold.

An art deco sapphire, diamond and platinum bracelet, circa 1925 of tapering design, centering a rectangular-cut sapphire flanked by rows of calibré-cut sapphires and accented with old European-cut diamond borders, millegrain setting; estimated total sapphire weight: 8.50 carats; estimated total diamond weight: 3.40 carats

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.

A sapphire and diamond bow brooch The collet-set oval-shaped sapphire, between arms of calibré-cut sapphires and brilliant-cut diamonds

An emerald and diamond handkerchief brooch, circa 1910 The lozenge-shaped surmount set with a step-cut emerald, weighing 8.53 carats, within borders of old brilliant and single-cut diamonds and calibré-cut emeralds, suspending an openwork floral and foliate pendant designed to resemble folded lace, millegrain-set throughout with similarly cut diamonds and emeralds, terminating in a fringe of pear-shaped emerald and single-cut diamond drops, mounted in platinum and yellow gold.

A belle époque diamond sûreté pin, circa 1910 Each finely pierced terminal millegrain-set with cushion and pear-shaped, old brilliant and single-cut diamonds, diamonds approximately 5.00 carats total, length 6.5cm.