Sales/Results·Bonhams London·11 December 2025·Live auction 30672
London Jewels
$4.98m in total, buyer’s premium included
Top lots per carat 12 lots · the highest prices per carat of the sale
$139,213per carat
Lot 91
Diamond and coloured diamond bracelet, 2009
0.16 ct
×0.8 high estimate
Estimate USD 20k – 27k
USD 22,274$139,213 per carat
$77,102per carat
Lot 146
Emerald and diamond ring
10.37 ct · Colombia · No oil
×6.0 high estimate
Estimate USD 94k – 134k
USD 799,546$77,102 per carat
$72,397per carat
Lot 127
David marshall: diamond and coloured diamond bracelet, 2012
0.71 ct · Fancy Deep Brownish Yellowish
×0.6 high estimate
Estimate USD 54k – 80k
USD 51,402$72,397 per carat
$13,883per carat
Lot 145
Emerald and diamond pendant
4.69 ct · Colombia
×2.4 high estimate
Estimate USD 20k – 27k
USD 65,110$13,883 per carat
$13,102per carat
Lot 35
Coloured diamond plaque ring, circa 1895
0.85 ct
×1.0 high estimate
Estimate USD 7k – 11k
USD 11,137$13,102 per carat
$12,169per carat
Lot 41
Diamond and emerald ring
3.52 ct
×1.1 high estimate
Estimate USD 27k – 40k
USD 42,835$12,169 per carat
$10,342per carat
Lot 128
Retailed by david marshall: fancy coloured diamond ring
12.38 ct · Fancy Yellow · VS2
×1.0 high estimate
Estimate USD 100k – 134k
USD 128,037$10,342 per carat
$5,871per carat
Lot 80A
Coloured diamond and diamond ring
11.09 ct
×1.4 high estimate
Estimate USD 33k – 47k
USD 65,110$5,871 per carat
$5,182per carat
Lot 63
Emerald and diamond ring
2.48 ct · Colombia · Insignificant oil
×1.0 high estimate
Estimate USD 9k – 13k
USD 12,851$5,182 per carat
$3,665per carat
Lot 90A
Ruby and diamond ring
3.74 ct · No heat
×0.9 high estimate
Estimate USD 11k – 16k
USD 13,707$3,665 per carat
$3,661per carat
Lot 65A
Sapphire and diamond ring
7.02 ct
×1.6 high estimate
Estimate USD 11k – 16k
USD 25,701$3,661 per carat
$3,497per carat
Lot 66
Ruby and diamond ring
7.35 ct
×1.0 high estimate
Estimate USD 20k – 27k
USD 25,701$3,497 per carat
Sapphires 7 lots
$2,949per carat
Lot 88
Sapphire and diamond ring
5.81 ct · Ceylon · No heat
×0.9 high estimate
Estimate USD 13k – 20k
USD 17,134$2,949 per carat
Lot 122
Reddish-purple sapphire and diamond ring
5.77 ct · Burma · No heat
Estimate USD 20k – 33k
Not sold
Lot 77
Sapphire and diamond ring
5.23 ct · Burma · No heat
Estimate USD 13k – 20k
Not sold
$3,661per carat
Lot 65A
Sapphire and diamond ring
7.02 ct
×1.6 high estimate
Estimate USD 11k – 16k
USD 25,701$3,661 per carat
$867per carat
Lot 137
Yellow sapphire and diamond ring, mid 20th century
16.80 ct
×0.9 high estimate
Estimate USD 11k – 16k
USD 14,564$867 per carat
$843per carat
Lot 58
Sapphire and diamond pendant necklace
34.54 ct
×1.1 high estimate
Estimate USD 20k – 27k
USD 29,128$843 per carat
Lot 59
Sapphire and diamond ring
8.00 ct
Estimate USD 8k – 11k
Not sold
Rubies 4 lots
$2,844per carat
Lot 125
Ruby and diamond ring
4.82 ct · Burma · No heat
×0.9 high estimate
Estimate USD 11k – 16k
USD 13,707$2,844 per carat
Lot 79
Ruby and diamond ring
3.42 ct · Burma · No heat
Estimate USD 13k – 20k
Not sold
$3,665per carat
Lot 90A
Ruby and diamond ring
3.74 ct · No heat
×0.9 high estimate
Estimate USD 11k – 16k
USD 13,707$3,665 per carat
$3,497per carat
Lot 66
Ruby and diamond ring
7.35 ct
×1.0 high estimate
Estimate USD 20k – 27k
USD 25,701$3,497 per carat
Emeralds 6 lots
$77,102per carat
Lot 146
Emerald and diamond ring
10.37 ct · Colombia · No oil
×6.0 high estimate
Estimate USD 94k – 134k
USD 799,546$77,102 per carat
$13,883per carat
Lot 145
Emerald and diamond pendant
4.69 ct · Colombia
×2.4 high estimate
Estimate USD 20k – 27k
USD 65,110$13,883 per carat
$5,182per carat
Lot 63
Emerald and diamond ring
2.48 ct · Colombia · Insignificant oil
×1.0 high estimate
Estimate USD 9k – 13k
USD 12,851$5,182 per carat
$1,254per carat
Lot 57
Emerald and diamond ring
13.66 ct · Colombia
×0.9 high estimate
Estimate USD 13k – 20k
USD 17,134$1,254 per carat
Lot 53
Pair of emerald and diamond pendent earrings
Colombia
Estimate USD 20k – 27k
Not sold
$23,988price paid
Lot 130
Emerald and diamond ring
×1.2 high estimate
Estimate USD 13k – 20k
USD 23,988
Coloured diamonds 7 lots
$139,213per carat
Lot 91
Diamond and coloured diamond bracelet, 2009
0.16 ct
×0.8 high estimate
Estimate USD 20k – 27k
USD 22,274$139,213 per carat
$72,397per carat
Lot 127
David marshall: diamond and coloured diamond bracelet, 2012
0.71 ct · Fancy Deep Brownish Yellowish
×0.6 high estimate
Estimate USD 54k – 80k
USD 51,402$72,397 per carat
$13,102per carat
Lot 35
Coloured diamond plaque ring, circa 1895
0.85 ct
×1.0 high estimate
Estimate USD 7k – 11k
USD 11,137$13,102 per carat
$10,342per carat
Lot 128
Retailed by david marshall: fancy coloured diamond ring
12.38 ct · Fancy Yellow · VS2
×1.0 high estimate
Estimate USD 100k – 134k
USD 128,037$10,342 per carat
$5,871per carat
Lot 80A
Coloured diamond and diamond ring
11.09 ct
×1.4 high estimate
Estimate USD 33k – 47k
USD 65,110$5,871 per carat
Lot 95
Fancy coloured diamond ring
5.78 ct · Fancy Yellow · I1
Estimate USD 40k – 54k
Not sold
Lot 61A
Coloured diamond and diamond ring
4.17 ct · Fancy Yellow · VS1
Estimate USD 24k – 33k
Not sold
Pearls and cultured pearls 16 lots
$82,136price paid
Lot 46
Natural pearl and diamond necklace
×1.5 high estimate
Estimate USD 27k – 54k
USD 82,136
$65,110price paid
Lot 47
Natural pearl and diamond pendent earrings
×1.0 high estimate
Estimate USD 40k – 67k
USD 65,110
$23,988price paid
Lot 45
Natural pearl and diamond earrings
×1.0 high estimate
Estimate USD 16k – 24k
USD 23,988
$14,564price paid
Lot 117
Cartier: cultured pearl and diamond 'Melodie' pendent earrings
×1.6 high estimate
Estimate USD 7k – 9k
USD 14,564
$10,280price paid
Lot 20
David Webb: cultured pearl, enamel and gem-set brooch, circa 1970
×1.0 high estimate
Estimate USD 8k – 11k
USD 10,280
$6,854price paid
Lot 18
Grima: cultured pearl and diamond ring, 1974
×0.9 high estimate
Estimate USD 5k – 8k
USD 6,854
$4,284price paid
Lot 11
Cultured pearl and diamond ring
×1.6 high estimate
Estimate USD 2k – 3k
USD 4,284
$2,741price paid
Lot 10
Cultured pearl and diamond earrings
×1.0 high estimate
Estimate USD 2k – 3k
USD 2,741
Lot 82
Van cleef and arpels: cultured pearl and diamond necklace, circa 1960
Estimate USD 33k – 47k
Not sold
Lot 116
Cultured pearl and diamond necklace
Estimate USD 13k – 20k
Not sold
$23,988price paid
Lot 34
Masriera: enamel, pearl and diamond brooch/pendant, circa 1905
×0.7 high estimate
Estimate USD 20k – 33k
USD 23,988
$14,564price paid
Lot 32
Attributed to carlo giuliano: pearl, diamond and enamel pendant, circa 1880
×1.4 high estimate
Estimate USD 8k – 11k
USD 14,564
$10,280price paid
Lot 40
Belle Époque pearl, emerald and diamond brooch/pendant necklace, circa 1905
×1.1 high estimate
Estimate USD 7k – 9k
USD 10,280
$7,710price paid
Lot 33
Seed pearl and diamond choker and bracelet suite, early 20th century (2)
×0.8 high estimate
Estimate USD 7k – 9k
USD 7,710
$5,483price paid
Lot 1
Of royal interest: enamel and seed pearl serpent bracelet, circa 1840
×0.8 high estimate
Estimate USD 4k – 7k
USD 5,483
$5,483price paid
Lot 9
Aquamarine, pearl and diamond earclips
×2.0 high estimate
Estimate USD 2k – 3k
USD 5,483
Signed jewels 71 lots
$14,564price paid
Lot 96
Angela cummings: black jade bangle, circa 1980
×0.9 high estimate
Estimate USD 11k – 16k
USD 14,564
$71,936price paid
Lot 129
Boucheron: diamond and emerald necklace and earring suite, circa 1985 (2)
×0.7 high estimate
Estimate USD 67k – 107k
USD 71,936
$22,274price paid
Lot 54
Bourdier: Art Deco diamond bracelet, circa 1925
×0.9 high estimate
Estimate USD 20k – 24k
USD 22,274
$85,537price paid
Lot 144
Bulgari: diamond bracelet, circa 1930
×0.8 high estimate
Estimate USD 67k – 107k
USD 85,537
$306,539price paid
Lot 148
Cartier: ruby and diamond necklace, circa 1935
×3.8 high estimate
Estimate USD 54k – 80k
USD 306,539
$122,937price paid
Lot 106
Cartier: 'Diane' diamond ring
×0.9 high estimate
Estimate USD 94k – 134k
USD 122,937
$94,037price paid
Lot 114
Cartier: diamond strap bracelet, circa 1925
×1.2 high estimate
Estimate USD 54k – 80k
USD 94,037
$85,537price paid
Lot 139
Cartier: diamond necklace/tiara combination, circa 1950
×1.3 high estimate
Estimate USD 40k – 67k
USD 85,537
$68,536price paid
Lot 147
Cartier: ruby and diamond 'Escalier' bracelet, circa 1935
×0.9 high estimate
Estimate USD 54k – 80k
USD 68,536
$59,969price paid
Lot 123
Cartier: diamond 'Ophelie' necklace
×0.9 high estimate
Estimate USD 40k – 67k
USD 59,969
$54,829price paid
Lot 94
Cartier: diamond rivière
×1.2 high estimate
Estimate USD 33k – 47k
USD 54,829
$47,975price paid
Lot 132
Cartier: sapphire and diamond 'Panthère' brooch, circa 1980
×0.9 high estimate
Estimate USD 40k – 54k
USD 47,975
$42,835price paid
Lot 110
Cartier: emerald, diamond and onyx 'Dame a la panthère', 2004 necklace
×0.9 high estimate
Estimate USD 33k – 47k
USD 42,835
$41,122price paid
Lot 113
Cartier: diamond-set dress watch, 1929
×1.7 high estimate
Estimate USD 16k – 24k
USD 41,122
$34,268price paid
Lot 135A
Cartier: ruby and diamond brooch and earclip suite, circa 1963 (2)
×0.9 high estimate
Estimate USD 27k – 40k
USD 34,268
$34,268price paid
Lot 135
Cartier: turquoise and diamond clip, circa 1930
×1.7 high estimate
Estimate USD 13k – 20k
USD 34,268
$22,274price paid
Lot 108
Cartier: diamond pendent earrings
×2.1 high estimate
Estimate USD 8k – 11k
USD 22,274
$20,561price paid
Lot 97
Cartier: diamond-set earclips, circa 1970
×1.0 high estimate
Estimate USD 13k – 20k
USD 20,561
$20,561price paid
Lot 6
Cartier: diamond dress watch, circa 1920
×1.5 high estimate
Estimate USD 11k – 13k
USD 20,561
$18,847price paid
Lot 119
Cartier: diamond 'Iliade' necklace
×0.9 high estimate
Estimate USD 13k – 20k
USD 18,847
$17,134price paid
Lot 109
Cartier: emerald, diamond and onyx 'Dame a la panthère' brooch, 2004
×0.9 high estimate
Estimate USD 13k – 20k
USD 17,134
$17,134price paid
Lot 138
Cartier: aquamarine and diamond brooch, circa 1930
×0.9 high estimate
Estimate USD 13k – 20k
USD 17,134
$15,421price paid
Lot 120
Cartier: diamond-set 'Penelope' earclips
×2.3 high estimate
Estimate USD 4k – 7k
USD 15,421
$14,564price paid
Lot 56
Monture Cartier: diamond spray brooch, circa 1960
×1.1 high estimate
Estimate USD 9k – 13k
USD 14,564
$14,564price paid
Lot 48A
Cartier: Art Deco diamond ring, circa 1925
×1.4 high estimate
Estimate USD 8k – 11k
USD 14,564
$14,564price paid
Lot 117
Cartier: cultured pearl and diamond 'Melodie' pendent earrings
×1.6 high estimate
Estimate USD 7k – 9k
USD 14,564
$14,564price paid
Lot 115
Cartier: diamond-set 'Nigeria' ring
×1.8 high estimate
Estimate USD 5k – 8k
USD 14,564
$13,707price paid
Lot 107
Cartier: diamond-set 'Etrier' necklace, 1999
×1.0 high estimate
Estimate USD 9k – 13k
USD 13,707
$10,280price paid
Lot 89
Cartier: diamond set 'Panthère griffe' ring
×1.3 high estimate
Estimate USD 5k – 8k
USD 10,280
$10,280price paid
Lot 118
Cartier: diamond 'Iliade' bracelet
×1.5 high estimate
Estimate USD 4k – 7k
USD 10,280
$5,483price paid
Lot 12
Cartier: diamond and gem-set clutch bag
×3.4 high estimate
Estimate USD 1k – 2k
USD 5,483
Lot 111
Cartier: 'Ballon blue' wristwatch
Estimate USD 11k – 16k
Not sold
Lot 31
Mounted by Cartier: pair of hardstone cameos, circa 1870
Estimate USD 5k – 8k
Not sold
$72,397per carat
Lot 127
David marshall: diamond and coloured diamond bracelet, 2012
0.71 ct · Fancy Deep Brownish Yellowish
×0.6 high estimate
Estimate USD 54k – 80k
USD 51,402$72,397 per carat
$11,137price paid
Lot 19
David Webb: coral, enamel and diamond ring, circa 1970
×1.4 high estimate
Estimate USD 5k – 8k
USD 11,137
$10,280price paid
Lot 20
David Webb: cultured pearl, enamel and gem-set brooch, circa 1970
×1.0 high estimate
Estimate USD 8k – 11k
USD 10,280
Lot 99
David Webb: enamel, ruby and diamond frog bracelet
Estimate USD 20k – 27k
Not sold
Lot 100
David Webb: enamel frog earclips
Estimate USD 7k – 9k
Not sold
$6,511price paid
Lot 81A
Dihn van: diamond-set disc necklace
×1.4 high estimate
Estimate USD 3k – 5k
USD 6,511
Lot 83
Graff: spinel and diamond ring
Estimate USD 60k – 74k
Not sold
$18,847price paid
Lot 102
Grima: gold and quartz wristwatch, 2003
×1.4 high estimate
Estimate USD 9k – 13k
USD 18,847
$18,847price paid
Lot 73A
Grima: vari-coloured bead necklace and earring suite, circa 1988 (2)
×1.8 high estimate
Estimate USD 8k – 11k
USD 18,847
$13,707price paid
Lot 73
Grima: agate geode 'Rock revival' pendant necklace, 1971
×1.3 high estimate
Estimate USD 8k – 11k
USD 13,707
$9,424price paid
Lot 98
Grima: emerald and diamond ring
×0.9 high estimate
Estimate USD 7k – 11k
USD 9,424
$6,854price paid
Lot 18
Grima: cultured pearl and diamond ring, 1974
×0.9 high estimate
Estimate USD 5k – 8k
USD 6,854
$2,741price paid
Lot 15
Gucci: wood wristwatch, circa 1970
×1.0 high estimate
Estimate USD 2k – 3k
USD 2,741
$548price paid
Lot 16
Gucci: two watches (2)
×0.3 high estimate
Estimate USD 1k – 2k
USD 548
$34,268price paid
Lot 81
Hemmerle: tricoloured collar
×1.7 high estimate
Estimate USD 17k – 20k
USD 34,268
$32,555price paid
Lot 74
Karl stittgen: aquamarine and diamond brooch/pendant necklace, circa 1970
×1.2 high estimate
Estimate USD 20k – 27k
USD 32,555
$18,847price paid
Lot 71
Kutchinsky: onyx and diamond pendant, 1973
×1.8 high estimate
Estimate USD 8k – 11k
USD 18,847
$17,134price paid
Lot 69
Kutchinsky: citrine and diamond pendant, circa 1975
×1.6 high estimate
Estimate USD 7k – 11k
USD 17,134
$13,707price paid
Lot 72
Kutchinsky: diamond-set pendant necklace, 2007
×0.9 high estimate
Estimate USD 11k – 16k
USD 13,707
$11,137price paid
Lot 68
Kutchinsky: gold and sapphire-set case, 1959
×1.0 high estimate
Estimate USD 8k – 11k
USD 11,137
$11,137price paid
Lot 70
Kutchinsky: tiger'S eye and diamond pendant, 1972
×1.4 high estimate
Estimate USD 5k – 8k
USD 11,137
$10,280price paid
Lot 101
Kutchinsky: banded agate and gold pendant, 1971
×1.0 high estimate
Estimate USD 8k – 11k
USD 10,280
$22,274price paid
Lot 105
Lalaounis: sodalite torque, bangle and ring suite (3)
×1.1 high estimate
Estimate USD 13k – 20k
USD 22,274
$17,134price paid
Lot 133
Marzo: onyx fancy-link bracelet, mid 20th century
×0.9 high estimate
Estimate USD 13k – 20k
USD 17,134
$23,988price paid
Lot 34
Masriera: enamel, pearl and diamond brooch/pendant, circa 1905
×0.7 high estimate
Estimate USD 20k – 33k
USD 23,988
$41,122price paid
Lot 85
Mauboussin: sapphire, diamond and mother-of-pearl necklace and earring suite (2)
×1.0 high estimate
Estimate USD 27k – 40k
USD 41,122
$73,636price paid
Lot 26
Of royal interest: diamond, ruby and enamel pendant, 17th century and later
×1.6 high estimate
Estimate USD 33k – 47k
USD 73,636
$5,483price paid
Lot 1
Of royal interest: enamel and seed pearl serpent bracelet, circa 1840
×0.8 high estimate
Estimate USD 4k – 7k
USD 5,483
$47,975price paid
Lot 76
Piaget: gold belt, 1968
×0.9 high estimate
Estimate USD 40k – 54k
USD 47,975
$10,342per carat
Lot 128
Retailed by david marshall: fancy coloured diamond ring
12.38 ct · Fancy Yellow · VS2
×1.0 high estimate
Estimate USD 100k – 134k
USD 128,037$10,342 per carat
Lot 103
Herz belperron: emerald and sapphire dress ring, circa 1990
Estimate USD 11k – 16k
Not sold
$4,798price paid
Lot 78
Angela cummings for tiffany: 'Damascene' bangle
×0.9 high estimate
Estimate USD 4k – 5k
USD 4,798
$85,537price paid
Lot 131
Van Cleef & Arpels: sapphire and diamond bracelet, 1989
×0.8 high estimate
Estimate USD 67k – 107k
USD 85,537
$17,134price paid
Lot 55
Van cleef and arpels: 'Un cercle' diamond brooch, circa 1930
×0.9 high estimate
Estimate USD 13k – 20k
USD 17,134
$15,421price paid
Lot 136
Marchak: carved ruby, diamond and coloured diamond bracelet,
×1.0 high estimate
Estimate USD 11k – 16k
USD 15,421
$9,424price paid
Lot 80
Van Cleef & Arpels: tiger'S eye and carnelian 'Magic alhambra' necklace
×1.2 high estimate
Estimate USD 5k – 8k
USD 9,424
Lot 82
Van cleef and arpels: cultured pearl and diamond necklace, circa 1960
Estimate USD 33k – 47k
Not sold
$10,280price paid
Lot 17
Verdura: amethyst and diamond ring, circa 1970
×1.3 high estimate
Estimate USD 5k – 8k
USD 10,280
Vintage 32 lots
$306,539price paid
Lot 148
Cartier: ruby and diamond necklace, circa 1935
×3.8 high estimate
Estimate USD 54k – 80k
USD 306,539
$136,537price paid
Lot 27
Diamond rivière, 19th century
×1.0 high estimate
Estimate USD 94k – 134k
USD 136,537
$94,037price paid
Lot 114
Cartier: diamond strap bracelet, circa 1925
×1.2 high estimate
Estimate USD 54k – 80k
USD 94,037
$85,537price paid
Lot 144
Bulgari: diamond bracelet, circa 1930
×0.8 high estimate
Estimate USD 67k – 107k
USD 85,537
$85,537price paid
Lot 139
Cartier: diamond necklace/tiara combination, circa 1950
×1.3 high estimate
Estimate USD 40k – 67k
USD 85,537
$73,636price paid
Lot 26
Of royal interest: diamond, ruby and enamel pendant, 17th century and later
×1.6 high estimate
Estimate USD 33k – 47k
USD 73,636
$68,536price paid
Lot 147
Cartier: ruby and diamond 'Escalier' bracelet, circa 1935
×0.9 high estimate
Estimate USD 54k – 80k
USD 68,536
$47,975price paid
Lot 49
Diamond pendent earrings, early 20th century
×1.8 high estimate
Estimate USD 20k – 27k
USD 47,975
$34,268price paid
Lot 112
Diamond strap bracelet, circa 1930
×1.0 high estimate
Estimate USD 20k – 33k
USD 34,268
$34,268price paid
Lot 135
Cartier: turquoise and diamond clip, circa 1930
×1.7 high estimate
Estimate USD 13k – 20k
USD 34,268
$23,988price paid
Lot 34
Masriera: enamel, pearl and diamond brooch/pendant, circa 1905
×0.7 high estimate
Estimate USD 20k – 33k
USD 23,988
$23,988price paid
Lot 51
Sapphire and diamond bracelet, circa 1930
×1.2 high estimate
Estimate USD 13k – 20k
USD 23,988
$23,988price paid
Lot 13
Indian gem-set necklace, late 19th century/early 20th century
×3.0 high estimate
Estimate USD 5k – 8k
USD 23,988
$22,274price paid
Lot 54
Bourdier: Art Deco diamond bracelet, circa 1925
×0.9 high estimate
Estimate USD 20k – 24k
USD 22,274
$22,274price paid
Lot 75
Diamond-set collar, circa 1955
×1.4 high estimate
Estimate USD 11k – 16k
USD 22,274
$20,561price paid
Lot 6
Cartier: diamond dress watch, circa 1920
×1.5 high estimate
Estimate USD 11k – 13k
USD 20,561
$17,134price paid
Lot 55
Van cleef and arpels: 'Un cercle' diamond brooch, circa 1930
×0.9 high estimate
Estimate USD 13k – 20k
USD 17,134
$17,134price paid
Lot 133
Marzo: onyx fancy-link bracelet, mid 20th century
×0.9 high estimate
Estimate USD 13k – 20k
USD 17,134
$17,134price paid
Lot 138
Cartier: aquamarine and diamond brooch, circa 1930
×0.9 high estimate
Estimate USD 13k – 20k
USD 17,134
$16,277price paid
Lot 5
Emerald, pearl and gem-set torsade bracelet, circa 1930
×2.0 high estimate
Estimate USD 5k – 8k
USD 16,277
$867per carat
Lot 137
Yellow sapphire and diamond ring, mid 20th century
16.80 ct
×0.9 high estimate
Estimate USD 11k – 16k
USD 14,564$867 per carat
$14,564price paid
Lot 48A
Cartier: Art Deco diamond ring, circa 1925
×1.4 high estimate
Estimate USD 8k – 11k
USD 14,564
$11,994price paid
Lot 37
Moonstone and diamond bracelet, circa 1920
×1.3 high estimate
Estimate USD 7k – 9k
USD 11,994
$11,137price paid
Lot 50
Sapphire and diamond brooch, circa 1925
×1.0 high estimate
Estimate USD 8k – 11k
USD 11,137
$11,137price paid
Lot 3
Amethyst and diamond 'Pansy' pendant/brooch, late 19th century
×1.7 high estimate
Estimate USD 4k – 7k
USD 11,137
$10,280price paid
Lot 40
Belle Époque pearl, emerald and diamond brooch/pendant necklace, circa 1905
×1.1 high estimate
Estimate USD 7k – 9k
USD 10,280
$8,224price paid
Lot 36
Belle Époque sapphire and diamond brooch, circa 1905
×0.1 high estimate
Estimate USD 7k – 94k
USD 8,224
$8,224price paid
Lot 14
Indian gold bangle, late 19th century/early 20th century
×1.2 high estimate
Estimate USD 4k – 7k
USD 8,224
$7,710price paid
Lot 33
Seed pearl and diamond choker and bracelet suite, early 20th century (2)
×0.8 high estimate
Estimate USD 7k – 9k
USD 7,710
$7,710price paid
Lot 44
Belle Époque emerald and diamond pendant, circa 1890
×1.0 high estimate
Estimate USD 5k – 8k
USD 7,710
Lot 43
Belle Époque diamond brooch/pendant/tiara combination, circa 1905
Estimate USD 11k – 16k
Not sold
Lot 42
Belle Époque diamond brooch/pendant, circa 1900
Estimate USD 9k – 13k
Not sold
Other jewels 36 lots
$170,538price paid
Lot 21
Lady glenconner'S diamond star tiara/coronet/brooch combination, circa 1880 and later
×1.6 high estimate
Estimate USD 67k – 107k
USD 170,538
$128,037price paid
Lot 30
Nancy astor'S diamond bracelet, circa 1870
×2.7 high estimate
Estimate USD 33k – 47k
USD 128,037
$71,936price paid
Lot 92
Diamond single-stone ring, 2017
×0.8 high estimate
Estimate USD 60k – 87k
USD 71,936
$68,536price paid
Lot 52
Diamond single-stone ring
×1.5 high estimate
Estimate USD 33k – 47k
USD 68,536
$68,536price paid
Lot 141
Emerald and diamond pendent earrings
×2.0 high estimate
Estimate USD 20k – 33k
USD 68,536
$59,969price paid
Lot 67
Multi gem-set necklace, earring, ring and bracelet suite, circa 1980
×1.5 high estimate
Estimate USD 27k – 40k
USD 59,969
$51,402price paid
Lot 142
Ruby and diamond bracelet
×0.8 high estimate
Estimate USD 40k – 67k
USD 51,402
$42,835price paid
Lot 98A
Diamond ring
×1.1 high estimate
Estimate USD 27k – 40k
USD 42,835
$34,268price paid
Lot 32B
Diamond cross pendant, circa 1850
×1.7 high estimate
Estimate USD 13k – 20k
USD 34,268
$30,841price paid
Lot 56A
Single-stone diamond ring
×1.0 high estimate
Estimate USD 24k – 29k
USD 30,841
$27,415price paid
Lot 25
Diamond brooch, circa 1800
×2.6 high estimate
Estimate USD 8k – 11k
USD 27,415
$25,701price paid
Lot 65
Diamond tiara
×0.8 high estimate
Estimate USD 20k – 33k
USD 25,701
$25,701price paid
Lot 93
Monture faraone: turquoise and diamond fringe necklace, circa 1965
×1.0 high estimate
Estimate USD 20k – 27k
USD 25,701
$25,701price paid
Lot 60
Interchangeable emerald, cultured pearl and diamond pendent earrings
×1.1 high estimate
Estimate USD 16k – 24k
USD 25,701
$23,988price paid
Lot 29
Diamond-set bangle, circa 1890
×1.2 high estimate
Estimate USD 13k – 20k
USD 23,988
$18,847price paid
Lot 87
Diamond line bracelet
×1.2 high estimate
Estimate USD 11k – 16k
USD 18,847
$17,134price paid
Lot 28
Diamond set floral brooch/pendant/hair ornament, circa 1890
×0.9 high estimate
Estimate USD 13k – 20k
USD 17,134
$13,707price paid
Lot 61
Emerald bead necklace
×0.7 high estimate
Estimate USD 13k – 20k
USD 13,707
$13,707price paid
Lot 84
Diamond cluster earrings
×0.9 high estimate
Estimate USD 11k – 16k
USD 13,707
$12,851price paid
Lot 23
Ruby and diamond ring, circa 1830
×2.4 high estimate
Estimate USD 4k – 5k
USD 12,851
$8,567price paid
Lot 4
Emerald and diamond bead bracelet,
×2.1 high estimate
Estimate USD 3k – 4k
USD 8,567
$8,567price paid
Lot 7
Star sapphire and diamond bracelet
×4.3 high estimate
Estimate USD 1k – 2k
USD 8,567
$8,224price paid
Lot 22
Diamond, enamel and portrait miniature bangle, circa 1843-45
×1.0 high estimate
Estimate USD 5k – 8k
USD 8,224
$7,710price paid
Lot 62
Spinel and diamond ring
×1.0 high estimate
Estimate USD 5k – 8k
USD 7,710
$6,854price paid
Lot 32A
Diamond st. esprit brooch/pendant, circa 1840
×0.9 high estimate
Estimate USD 5k – 8k
USD 6,854
$6,854price paid
Lot 2
Topaz and diamond brooch, circa 1890
×1.7 high estimate
Estimate USD 3k – 4k
USD 6,854
$2,741price paid
Lot 8
Rose-cut diamond and enamel scots guards brooch
×1.7 high estimate
Estimate USD 1k – 2k
USD 2,741
Lot 124
Diamond pendant necklace
Estimate USD 100k – 134k
Not sold
Lot 64
Diamond rivière
Estimate USD 80k – 94k
Not sold
Lot 86
Diamond single-stone pendant necklace
Estimate USD 40k – 67k
Not sold
Lot 38
Diamond single-stone ring
Estimate USD 27k – 40k
Not sold
Lot 143
Diamond brooch/pendant, circa 1965
Estimate USD 27k – 40k
Not sold
Lot 126
Diamond ring
Estimate USD 27k – 33k
Not sold
Lot 140
Emerald bead necklace
Estimate USD 20k – 27k
Not sold
Lot 121
Diamond and cultured pearl brooch, circa 1965
Estimate USD 11k – 16k
Not sold
Lot 104
Emerald and sapphire earrings
Estimate USD 3k – 5k
Not sold
Prices are the prices paid, buyer’s premium included, as Bonhams publishes them; prices per carat and comparisons with the estimates use them too (Bonhams estimates do not include the premium). Prices in USD at the ECB rate of 11 December 2025. Photographs © Bonhams 2025.
Stones seen before
1 lot of this sale has been offered at auction before: the same stone, found by its laboratory report and weight. Resales
