Lot 150. A cultured pearl, seed pearl, diamond and gold bracelet/watch, by Charles de Temple, 1987. Estimate £ 3,000 - 5,000 (€ 3,500 - 5,800). © Bonhams 2001-2019.

Lot 151. A cultured mabé pearl and diamond brooch, by Charles de Temple, circa 1980. Estimate £ 1,500 - 2,500 (€ 1,700 - 2,900). © Bonhams 2001-2019.

The openwork cartouche of astrological inspiration, set with a cultured mabé pearl, brilliant-cut diamonds, with beadwork detail and a textured bicoloured finish, unsigned, length 5.5cm.

Lot 152. An onyx, emerald and diamond brooch/pendant, by Charles de Temple, circa 1985. Estimate £ 3,000 - 4,000 (€ 1,700 - 2,900). © Bonhams 2001-2019.

The bicoloured v-shaped pendant of mesh design, set with buff-top onyx in quatrefoil surrounds, cabochon emeralds and onyx and marquise-cut diamonds, suspending a pear-shaped onyx and pear-shaped emerald drop, the sculptural shoulders highlighted with brilliant-cut diamonds and pear-shaped and marquise-cut emeralds, accompanied by pendant and brooch fittings, signed Charles de Temple, length 10.2cm.

Lot 153. A cultured pearl, onyx and diamond necklace, by Charles de Temple, circa 1980. Estimate £ 4,000 - 6,000 (€ 4,600 - 6,900). © Bonhams 2001-2019.

The collar necklace designed as four strands of cultured pearls, varying from cream to silver tints, alternating with onyx and pavé-set brilliant-cut diamond roundels, each 'wrapped' in textured abstract mounts, with additional link fitting, unsigned, length shortest strand 31.6cm, additional link 4.1cm.

Lot 154. Two cultured pearl necklaces, by Charles de Temple, circa 1985. Estimate £ 4,000 - 6,000 (€ 4,600 - 6,900). © Bonhams 2001-2019.

Each designed as a row of 'wrapped' baroque cultured pearls interspersed by trios of baroque shaped cultured pearl clusters secured with 'tendrils' and beaded detail, unsigned, lengths: 57.2cm, 37.8cm, maker's case.

Lot 155. A 16.50 carats Sri Lankan sapphire and diamond ring, and a diamond-set ring, by Charles de Temple, 1985. Estimate £ 8,000 - 12,000 (€ 9,300 - 14,000). © Bonhams 2001-2019.

The detachable collet-set oval-cut sapphire within a pear-shaped and brilliant-cut diamond and pear-shaped sapphire tassel surround, the shank with beadwork detail; together with a separate ring mount of arched design formed of overlaid bicoloured batons with brilliant-cut diamond highlights, and a brilliant-cut diamond tassel, principal sapphire approximately 16.50 carats, diamonds approximately 2.55 carats total, one ring signed CdeT, London hallmark, ring size I½ and J, maker's case.

Accompanied by a screwdriver for detaching the principal sapphire fitting which can be interchanged with the fittings in Lots 156 and 157.

Accompanied by a report from The Gem & Pearl Laboratory stating that the sapphire is of Sri Lankan origin, with no evidence of heat treatment. Report number 16873, dated 19 February 2019.

Lot 156. A gold, sapphire and diamond brooch/pendant, by Charles de Temple, circa 1985. Estimate £ 4,000 - 6,000 (€ 4,600 - 6,900). © Bonhams 2001-2019.

Formed of bicoloured overlapping batons, highlighted with oval-cut and cabochon sapphires, suspending three pear-shaped diamond drops, with scattered brilliant-cut diamonds and beadwork detail, diamonds approximately 2.80 carats total, signed Charles de Temple, length 7.6cm.

The central oval fitting is detachable and can be interchanged with the fittings in Lots 155 and 157.

Lot 157. A gold and diamond necklace, by Charles de Temple, 1985. Estimate £ 5,000 - 7,000 (€ 5,800 - 8,100). © Bonhams 2001-2019.

The undulating collar composed of a series of graduating overlaid bicoloured 18 carat gold 'baton' link sprays, the front section suspending pear-shaped diamond drops, each link alternating between triangular shaped spacers, with scattered marquise-cut and brilliant-cut diamond highlights and beadwork detail throughout, diamonds approximately 5.00 carats total, signed CdeT, London hallmark, length 16.5cm, maker's case.

Note: The oval fitting in the central plaque is detachable and can be interchanged with the fittings in Lots 155 and 156.

This necklace is part of a series Charles de Temple called 'nervous jewels', that were prickly sculptural constructions created from bicoloured gold wire. 

A similar example can be found in the collection of The National Museum of Scotland.

Lot 158. Three gold necklaces, by Charles de Temple, circa 1983. Estimate £ 1,500 - 2,000 (€ 1,700 - 2,300). © Bonhams 2001-2019.

Each of similar bicoloured paisley design, the first single chain set with marquise-cut diamond highlights, the second a single chain, the third a three-row chain, together with an additional link joining the two single chains into a longchain, two signed CdeT, London hallmarks, three-row chain unmarked, lengths: first 41.2cm, second 45.0cm, third 35.7cm, additional link 9.8cm.

Lot 159. A diamond and sapphire pendant, by Charles de Temple, 1977. Estimate £ 8,000 - 12,000 (€ 9,300 - 14,000). © Bonhams 2001-2019.

The circular openwork pendant depicting flora and fauna, set with a brilliant-cut diamond, weighing 3.41 carats, and pavé-set circular-cut sapphires and brilliant-cut diamonds, mounted in 18 carat bicoloured gold of matte, polished, and granulated finish, signed CdeT, London hallmark, length 8.4cm.

Bonhams. LONDON JEWELS, 30 Apr 2019, 13:00 BST - LONDON, NEW BOND STREET