An aquamarine and diamond pendant necklace The oval mixed-cut aquamarine within a brilliant-cut diamond border, suspending a collet-set brilliant-cut diamond and a pear-shaped aquamarine and brilliant-cut diamond swing drop, the whole suspended from a row of brilliant-cut diamonds and a trace-link chain, principal diamond approx. 0.40ct., lengths: pendant 4.0cm., necklace 39.0cm.
FANCY GREYISH BLUE DIAMOND AND DIAMOND PENDANT, CIRCA 1910. The open work pendant set at the centre with a fancy greyish blue pear- shaped diamond weighing 1.03 carat, within a delicate garland style frame of stylized foliate, palmette and scroll design, set with cushion-shaped and rose-cut diamonds.
Belle Epoque pear shaped diamond pendant, c.1905 , the principal pear cut stone claw set within a graduated swing diamond frame, hung from a millegrain set ribbon tied bow, the ribbon strand ends each suspending a brilliant cut diamond, diamond line suspension loop above
Early Art Deco briolette cut aquamarine and diamond pendant, French c.1920 , the elongated aquamarine with diamond set cap, hung from an openwork millegrain set fan shaped surmount set with round and baguette cut diamonds, on a diamond set suspension hoop, together with a later fetter and three link platinum chain necklace
A pair of emerald and diamond pendant earrings, Oscar Heyman & Brothers, 1989 each designed as a marquise-shaped emerald within a surround of marquise-shaped diamonds suspended from a pear-shaped diamond, marquise-shaped emerald and marquise-shaped diamond triple-stone surmount; with maker's mark HB for Oscar Heyman & Brothers, no. 703244; estimated total emerald weight: 4.15 carats; estimated total diamond weight: 4.65 carats; mounted in platinum and eighteen karat gold; length: 1 3/4in.
AQUAMARINE AND DIAMOND PENDANT NECKLACE, MARGHERITA BURGENER. Set at the centre with an oval aquamarine surrounded by brilliant-cut diamonds, to a trace link chain, loop fitting, length approximately 460mm, signed Margherita Burgener, Italian assay and maker's marks, case, Margherita Burgener.
An aquamarine and diamond pendant necklace, circa 1890 The old brilliant and single-cut diamond cartouche, centrally set with an oval mixed-cut aquamarine, to a rose-cut diamond suspensory loop and a trace-link chain, diamonds approx. 3.00ct total, originally a brooch/pendant, brooch fitting deficient, lengths: pendant 5.2cm, chain 42.4cm