1 Van Cleef & Arpels

Coral and polished gold clip, 1930s

2 Cartier

Coral, onyx, enamel and diamond brooch, 1920s

4 Diamond ring

6 An important diamond ring

7 Pair of unmounted diamonds

8 'Blue Legacy', an outstanding and extremely rare 'Santa Maria'-type aquamarine

9 Diamond tiara, early 20th century

10 Natural pearl, ruby and diamond brooch, late 19th century and later

11 Diamond necklace, early 20th century composite

12 Ruby and diamond brooch, circa 1950

13 Diamond ring

14 Emerald and diamond ring

15 Diamond ring

16 Sapphire and diamond ring

18 Cartier

Sapphire, diamond and polished gold necklace

19 Cartier

Diamond ring, 'Nigeria'

20 Cartier

Pair of gold bangles, 'Bamboo'

21 Cartier

Diamond parure, 'Bamboo'

22 Cartier

Coral, gem set and diamond brooch

23 Cartier

Gold and diamond pendant, 'Panthère' and a gold bracelet, Cartier, and a chain

24 Cartier

Diamond parure, 'Panthère'

25 Cartier

Pair of diamond ear clips

26 Cartier

Diamond ring, 'Trinity'

27 Van Cleef & Arpels

Mother-of-pearl and diamond pendant

28 Collection of gem-set and diamond brooches and a pendant, 19th century to early 20th century

30 Collection of gem set and diamond jewels, 19th century

33 Sapphire and diamond brooch, early 20th Century

34 Diamond pendant, circa 1910, and a chain

35 Pair of onyx and diamond pendent ear clips, circa 1920 and later

36 Emerald and diamond bracelet

37 Emerald and diamond ring

38 Diamond bracelet, mid 20th century

40 Diamond double clip brooch, circa 1950

41 Tiffany & Co.

Pair of ruby and diamond ear clips, 1950s

42 Diamond brooch

43 Pair of diamond ear clips, circa 1950

44 Diamond ring, circa 1960

45 Gold and diamond demi-parure, circa 1960

47 Collection of ruby and diamond jewels

48 Unmounted diamond

50 Cartier

Diamond ear clips, 'Maillon Panthère'

51 Cartier

Diamond ring, 'Nigeria'

52 de Grisogono

Pair of diamond earrings, 'Allegra'

53 Cartier

Gold necklace

54 Diamond bracelet

55 Cartier

Pair of polished gold ear clips and a ring, Cartier

56 Cartier

Diamond demi-parure, 'Bamboo'

57 Cartier

Diamond bangle, 'Love' and a bangle, 'Love'