Sales/Results·Bonhams New York·8 December 2025·Live auction 30831
New York Jewels
$5.28m in total, buyer’s premium included
Top lots per carat 11 lots · the highest prices per carat of the sale
$150,588per carat
Lot 83
An unmounted fancy vivid purplish pink diamond
0.17 ct · Fancy Vivid Purplish Pink · SI2
×0.7 high estimate
Estimate USD 25k – 35k
USD 25,600$150,588 per carat
$146,893per carat
Lot 164
Important sapphire and diamond ring
6.92 ct · Kashmir · No heat
×2.0 high estimate
Estimate USD 300k – 500k
USD 1,016,500$146,893 per carat
$19,453per carat
Lot 72
An emerald and diamond brooch
7.86 ct · Colombia · Minor oil
×0.7 high estimate
Estimate USD 125k – 225k
USD 152,900$19,453 per carat
$13,391per carat
Lot 87
An emerald and diamond ring
16.16 ct · Colombia · Minor oil
×2.7 high estimate
Estimate USD 50k – 80k
USD 216,400$13,391 per carat
$12,167per carat
Lot 81
A fancy vivid orange-yellow diamond, sapphire and diamond ring
2.63 ct · Fancy Vivid Orange-Yellow
×0.9 high estimate
Estimate USD 25k – 35k
USD 32,000$12,167 per carat
$10,020per carat
Lot 38
Cartier: a fancy yellow diamond and diamond 'Julia' ring, france
5.11 ct · Fancy Yellow · VVS2
×1.5 high estimate
Estimate USD 25k – 35k
USD 51,200$10,020 per carat
$8,960per carat
Lot 69
A sapphire and diamond ring
4.00 ct · Ceylon · No heat
×6.0 high estimate
Estimate USD 4k – 6k
USD 35,840$8,960 per carat
$6,603per carat
Lot 147
A ruby and diamond ring
1.26 ct · Burma · No heat
×1.4 high estimate
Estimate USD 4k – 6k
USD 8,320$6,603 per carat
$4,923per carat
Lot 127
A pink sapphire and diamond ring
2.08 ct · Burma · No heat
×1.1 high estimate
Estimate USD 6k – 9k
USD 10,240$4,923 per carat
$3,759per carat
Lot 25
A sapphire and diamond ring, france
33.92 ct · Ceylon · No heat
×0.8 high estimate
Estimate USD 100k – 150k
USD 127,500$3,759 per carat
$2,532per carat
Lot 24
A ruby ring
2.78 ct · Burma · No heat
×0.1 high estimate
Estimate USD 30k – 50k
USD 7,040$2,532 per carat
Sapphires 10 lots
$146,893per carat
Lot 164
Important sapphire and diamond ring
6.92 ct · Kashmir · No heat
×2.0 high estimate
Estimate USD 300k – 500k
USD 1,016,500$146,893 per carat
Lot 159
A sapphire and diamond ring
8.35 ct · Kashmir · No heat
Estimate USD 80k – 120k
Not sold
$8,960per carat
Lot 69
A sapphire and diamond ring
4.00 ct · Ceylon · No heat
×6.0 high estimate
Estimate USD 4k – 6k
USD 35,840$8,960 per carat
$3,759per carat
Lot 25
A sapphire and diamond ring, france
33.92 ct · Ceylon · No heat
×0.8 high estimate
Estimate USD 100k – 150k
USD 127,500$3,759 per carat
$95,750price paid
Lot 58
Pair of sapphire and diamond earclips
Ceylon · No heat
×1.2 high estimate
Estimate USD 50k – 80k
USD 95,750
$61,440price paid
Lot 137
A fancy-color sapphire, sapphire and diamond necklace
Ceylon · No heat
×2.2 high estimate
Estimate USD 22k – 28k
USD 61,440
$4,923per carat
Lot 127
A pink sapphire and diamond ring
2.08 ct · Burma · No heat
×1.1 high estimate
Estimate USD 6k – 9k
USD 10,240$4,923 per carat
Lot 134
A sapphire and diamond brooch
20.82 ct · Burma · No heat
Estimate USD 280k – 300k
Not sold
$21,760price paid
Lot 53
Cartier: a sapphire and diamond ring
6.14 ct · Madagascar
×1.2 high estimate
Estimate USD 12k – 18k
USD 21,760
Lot 130
A sapphire ring
5.39 ct
Estimate USD 12k – 18k
Not sold
Emeralds 4 lots
Colombia
$19,453per carat
Lot 72
An emerald and diamond brooch
7.86 ct · Colombia · Minor oil
×0.7 high estimate
Estimate USD 125k – 225k
USD 152,900$19,453 per carat
$13,391per carat
Lot 87
An emerald and diamond ring
16.16 ct · Colombia · Minor oil
×2.7 high estimate
Estimate USD 50k – 80k
USD 216,400$13,391 per carat
$254,500price paid
Lot 61
Pair of emerald, colored diamond and diamond earclips
Colombia
×0.8 high estimate
Estimate USD 200k – 300k
USD 254,500
$44,800price paid
Lot 11
David Webb: an emerald and diamond ring
30.00 ct · Colombia · Minor oil
×1.0 high estimate
Estimate USD 35k – 45k
USD 44,800
Coloured diamonds 6 lots
$150,588per carat
Lot 83
An unmounted fancy vivid purplish pink diamond
0.17 ct · Fancy Vivid Purplish Pink · SI2
×0.7 high estimate
Estimate USD 25k – 35k
USD 25,600$150,588 per carat
$12,167per carat
Lot 81
A fancy vivid orange-yellow diamond, sapphire and diamond ring
2.63 ct · Fancy Vivid Orange-Yellow
×0.9 high estimate
Estimate USD 25k – 35k
USD 32,000$12,167 per carat
$10,020per carat
Lot 38
Cartier: a fancy yellow diamond and diamond 'Julia' ring, france
5.11 ct · Fancy Yellow · VVS2
×1.5 high estimate
Estimate USD 25k – 35k
USD 51,200$10,020 per carat
Lot 150
A fancy pink-purple diamond and diamond ring
2.66 ct · Fancy Pink-Purple
Estimate USD 180k – 280k
Not sold
Lot 85
An unmounted fancy intense pink diamond
0.33 ct · Fancy Intense Pink · VS1
Estimate USD 30k – 50k
Not sold
Lot 84
An unmounted fancy intense purplish pink diamond
0.19 ct · Fancy Intense Purplish Pink · SI2
Estimate USD 20k – 30k
Not sold
Pearls and cultured pearls 5 lots
$16,640price paid
Lot 160
A natural pearl and diamond brooch, circa 1880
×0.9 high estimate
Estimate USD 12k – 18k
USD 16,640
$12,800price paid
Lot 56
A cultured pearl and diamond necklace
×1.1 high estimate
Estimate USD 8k – 12k
USD 12,800
$9,600price paid
Lot 158
A cultured pearl and diamond necklace
×1.6 high estimate
Estimate USD 4k – 6k
USD 9,600
$4,864price paid
Lot 155
A cultured pearl and diamond necklace
×1.0 high estimate
Estimate USD 3k – 5k
USD 4,864
$4,480price paid
Lot 101
David Webb: a pair of mabé pearl and diamond earclips
×0.7 high estimate
Estimate USD 4k – 6k
USD 4,480
Signed jewels 79 lots
$25,600price paid
Lot 18
Buccellati: an 18k gold and sapphire bracelet, italy
×0.9 high estimate
Estimate USD 20k – 30k
USD 25,600
$28,160price paid
Lot 15
Bulgari: an 18k gold and wood necklace
×3.5 high estimate
Estimate USD 6k – 8k
USD 28,160
$23,040price paid
Lot 86
Bulgari: an 18k gold and steel collar and cuff set, italy
×1.3 high estimate
Estimate USD 16k – 18k
USD 23,040
$12,800price paid
Lot 73
Bulgari: an 18k white gold 'Trika' bracelet, italy
×1.1 high estimate
Estimate USD 8k – 12k
USD 12,800
Lot 55
Bulgari: a diamond ring
Estimate USD 45k – 75k
Not sold
Lot 49
Bulgari: a turquoise, sapphire and diamond bracelet
Estimate USD 50k – 70k
Not sold
Lot 1
Bulgari: a pair of diamond 'Tubogas' earclips, italy
Estimate USD 4k – 6k
Not sold
$10,020per carat
Lot 38
Cartier: a fancy yellow diamond and diamond 'Julia' ring, france
5.11 ct · Fancy Yellow · VVS2
×1.5 high estimate
Estimate USD 25k – 35k
USD 51,200$10,020 per carat
$28,160price paid
Lot 39
Cartier: a pair of onyx and diamond 'Clash de Cartier' earrings, france
×1.9 high estimate
Estimate USD 10k – 15k
USD 28,160
$21,760price paid
Lot 53
Cartier: a sapphire and diamond ring
6.14 ct · Madagascar
×1.2 high estimate
Estimate USD 12k – 18k
USD 21,760
$21,760price paid
Lot 62
Cartier: an 18k white gold 'Panthère de Cartier' cuff, france
×1.5 high estimate
Estimate USD 12k – 15k
USD 21,760
$16,640price paid
Lot 40
Cartier: a diamond, enamel and emerald 'Panthère de Cartier' pendant necklace, france
×1.1 high estimate
Estimate USD 10k – 15k
USD 16,640
$16,640price paid
Lot 5
Cartier: a diamond 'Draperie de decollete' bracelet and earrings set
×2.4 high estimate
Estimate USD 5k – 7k
USD 16,640
$12,800price paid
Lot 2
Cartier: a diamond 'Panthère de Cartier' necklace
×1.6 high estimate
Estimate USD 6k – 8k
USD 12,800
$10,880price paid
Lot 82
Cartier: an 18k gold and white gold bracelet
×0.9 high estimate
Estimate USD 9k – 13k
USD 10,880
$9,600price paid
Lot 144
Cartier: an 18k gold waist hoop, necklace and bracelet set
×0.9 high estimate
Estimate USD 10k – 11k
USD 9,600
Lot 28
Cartier: an enamel and emerald 'Panthère de Cartier' bangle, france
Estimate USD 60k – 80k
Not sold
Lot 41
Carvin french: an amethyst, tsavorite and colored diamond necklace
Estimate USD 135k – 185k
Not sold
$44,800price paid
Lot 11
David Webb: an emerald and diamond ring
30.00 ct · Colombia · Minor oil
×1.0 high estimate
Estimate USD 35k – 45k
USD 44,800
$40,960price paid
Lot 121
David Webb: an 18k gold, platinum and diamond cuff
×1.2 high estimate
Estimate USD 25k – 35k
USD 40,960
$38,400price paid
Lot 118
David Webb: an emerald cuff
×1.3 high estimate
Estimate USD 20k – 30k
USD 38,400
$35,840price paid
Lot 78
David Webb: an enamel, lapis lazuli and diamond bangle
×1.0 high estimate
Estimate USD 25k – 35k
USD 35,840
$35,840price paid
Lot 115
David Webb: an azurmalachite and diamond necklace
×1.4 high estimate
Estimate USD 18k – 25k
USD 35,840
$32,000price paid
Lot 92
David Webb: a lapis lazuli and diamond cuff
×0.9 high estimate
Estimate USD 25k – 35k
USD 32,000
$28,160price paid
Lot 98
David Webb: a rock crystal necklace
×1.1 high estimate
Estimate USD 15k – 25k
USD 28,160
$25,600price paid
Lot 89
David Webb: a jade and diamond cuff
×0.9 high estimate
Estimate USD 20k – 30k
USD 25,600
$25,600price paid
Lot 20
David Webb: a turquoise and diamond brooch and earclips set
×1.0 high estimate
Estimate USD 15k – 25k
USD 25,600
$25,600price paid
Lot 106
David Webb: an 18k gold and diamond cuff
×1.7 high estimate
Estimate USD 10k – 15k
USD 25,600
$24,320price paid
Lot 105
David Webb: an 18k gold and ruby cuff
×1.6 high estimate
Estimate USD 10k – 15k
USD 24,320
$23,040price paid
Lot 95
David Webb: an 18k gold cuff
×1.3 high estimate
Estimate USD 12k – 18k
USD 23,040
$23,040price paid
Lot 104
David Webb: an 18k gold and diamond cuff
×1.5 high estimate
Estimate USD 10k – 15k
USD 23,040
$21,760price paid
Lot 117
David Webb: a pair of emerald earclips
×3.6 high estimate
Estimate USD 4k – 6k
USD 21,760
$20,480price paid
Lot 120
David Webb: an 18k gold necklace
×0.9 high estimate
Estimate USD 12k – 22k
USD 20,480
$20,480price paid
Lot 94
David Webb: a pair of ruby and diamond earclips
×2.6 high estimate
Estimate USD 6k – 8k
USD 20,480
$15,360price paid
Lot 119
David Webb: a pair of ruby, emerald and diamond earclips
×2.6 high estimate
Estimate USD 4k – 6k
USD 15,360
$14,080price paid
Lot 102
David Webb: a carnelian and diamond ring
×2.0 high estimate
Estimate USD 5k – 7k
USD 14,080
$14,080price paid
Lot 116
David Webb: an emerald ring
×2.0 high estimate
Estimate USD 5k – 7k
USD 14,080
$12,800price paid
Lot 96
David Webb: a pair of gem-set and diamond earclips
×2.6 high estimate
Estimate USD 3k – 5k
USD 12,800
$11,520price paid
Lot 114
David Webb: a pair of azurmalachite and diamond earclips
×1.6 high estimate
Estimate USD 5k – 7k
USD 11,520
$11,520price paid
Lot 111
David Webb: a pair of diamond earclips
×1.9 high estimate
Estimate USD 4k – 6k
USD 11,520
$10,880price paid
Lot 88
David Webb: a pair of peridot and diamond eariings
×1.4 high estimate
Estimate USD 6k – 8k
USD 10,880
$10,880price paid
Lot 107
David Webb: a pair of coral and diamond earclips
×1.4 high estimate
Estimate USD 6k – 8k
USD 10,880
$10,240price paid
Lot 110
David Webb: a coral and diamond ring
×1.1 high estimate
Estimate USD 7k – 9k
USD 10,240
$9,600price paid
Lot 97
David Webb: a pair of rock crystal earclips
×1.6 high estimate
Estimate USD 4k – 6k
USD 9,600
$9,600price paid
Lot 90
David Webb: a pair of rock crystal earclips
×1.9 high estimate
Estimate USD 3k – 5k
USD 9,600
$8,960price paid
Lot 91
David Webb: a pair of lapis lazuli earclips
×1.5 high estimate
Estimate USD 4k – 6k
USD 8,960
$8,960price paid
Lot 113
David Webb: an amethyst and diamond ring
×1.5 high estimate
Estimate USD 4k – 6k
USD 8,960
$8,320price paid
Lot 99
David Webb: a pair of coral and diamond earclips
×1.0 high estimate
Estimate USD 6k – 8k
USD 8,320
$7,680price paid
Lot 112
David Webb: a pair of amethyst and diamond earclips
×1.1 high estimate
Estimate USD 5k – 7k
USD 7,680
$7,040price paid
Lot 109
David Webb: a pair of diamond earclips
×1.4 high estimate
Estimate USD 3k – 5k
USD 7,040
$6,400price paid
Lot 93
David Webb: an 18k gold ring
×1.3 high estimate
Estimate USD 3k – 5k
USD 6,400
$5,120price paid
Lot 100
David Webb: a pair of 18k gold earclips
×1.0 high estimate
Estimate USD 3k – 5k
USD 5,120
$4,480price paid
Lot 101
David Webb: a pair of mabé pearl and diamond earclips
×0.7 high estimate
Estimate USD 4k – 6k
USD 4,480
Lot 77
David Webb: an enamel bracelet
Estimate USD 15k – 25k
Not sold
Lot 6
David Webb: a pair of enamel and diamond brooches
Estimate USD 15k – 20k
Not sold
Lot 22
Giovane: a pair of diamond earclips
Estimate USD 8k – 12k
Not sold
$4,096price paid
Lot 108
Gump'S: a gold and quartzite necklace
×0.7 high estimate
Estimate USD 4k – 6k
USD 4,096
$3,584price paid
Lot 51
H.stern: a topaz and diamond bracelet
×0.7 high estimate
Estimate USD 3k – 5k
USD 3,584
Lot 42
Julius cohen: a pair of spinel and diamond earclips
Estimate USD 28k – 32k
Not sold
$51,200price paid
Lot 123
Trabert & hoeffer - mauboussin: an emerald and diamond necklace, circa 1950
×0.7 high estimate
Estimate USD 50k – 70k
USD 51,200
$28,160price paid
Lot 67
Mauboussin: an Art Deco diamond lapel watch, france, circa 1925
×1.9 high estimate
Estimate USD 10k – 15k
USD 28,160
$76,700price paid
Lot 76
René boivin: a pair of diamond 'Fishscale' earclips, france
×3.8 high estimate
Estimate USD 15k – 20k
USD 76,700
$23,040price paid
Lot 8
René boivin: a sapphire, emerald and colored diamond brooch, france
×0.7 high estimate
Estimate USD 25k – 35k
USD 23,040
$15,360price paid
Lot 9
René boivin: a ruby and diamond brooch, france, circa 1940
×0.9 high estimate
Estimate USD 12k – 18k
USD 15,360
$20,480price paid
Lot 66
Shreve & co.: a diamond brooch/pendant, circa 1900
×1.4 high estimate
Estimate USD 10k – 15k
USD 20,480
$445,000price paid
Lot 146
Tiffany & Co.: a diamond ring
×0.8 high estimate
Estimate USD 350k – 550k
USD 445,000
$70,350price paid
Lot 153
Tiffany & Co.: a tourmaline and diamond 'Bird on a rock' brooch/pendant necklace
×1.1 high estimate
Estimate USD 45k – 65k
USD 70,350
$40,960price paid
Lot 131
Tiffany & Co.: a ruby bracelet, circa 1930
×2.7 high estimate
Estimate USD 10k – 15k
USD 40,960
$38,400price paid
Lot 79
Schlumberger for Tiffany & Co.: a pair of sapphire and diamond earclips
×1.3 high estimate
Estimate USD 20k – 30k
USD 38,400
$23,040price paid
Lot 143
Tiffany & co: a pair of diamond earrings
×1.2 high estimate
Estimate USD 10k – 20k
USD 23,040
$10,240price paid
Lot 142
Tiffany & Co.: a 14k gold bracelet
×1.1 high estimate
Estimate USD 7k – 9k
USD 10,240
$6,400price paid
Lot 7
Tiffany & Co.: an 18k gold bracelet
×1.3 high estimate
Estimate USD 3k – 5k
USD 6,400
$5,120price paid
Lot 17
Valentin magro: a diamond dress set
×1.0 high estimate
Estimate USD 3k – 5k
USD 5,120
$57,600price paid
Lot 149
Van Cleef & Arpels: a pair of diamond earrings, britain/france
×1.2 high estimate
Estimate USD 30k – 50k
USD 57,600
$38,400price paid
Lot 132
Van Cleef & Arpels: a sapphire, ruby and diamond 'Cascades' brooch, france, circa 1950
×0.8 high estimate
Estimate USD 30k – 50k
USD 38,400
$28,160price paid
Lot 19
Van Cleef & Arpels: a pair of sapphire and diamond earclips, france
×2.3 high estimate
Estimate USD 8k – 12k
USD 28,160
$19,200price paid
Lot 14
Van Cleef & Arpels: an 18k gold and wood bracelet, france
×1.3 high estimate
Estimate USD 10k – 15k
USD 19,200
Lot 54
Van Cleef & Arpels: a sapphire and diamond brooch, circa 1950
Estimate USD 80k – 120k
Not sold
Lot 71
Van Cleef & Arpels: a diamond 'Flame' brooch
Estimate USD 12k – 18k
Not sold
Vintage 12 lots
$51,200price paid
Lot 123
Trabert & hoeffer - mauboussin: an emerald and diamond necklace, circa 1950
×0.7 high estimate
Estimate USD 50k – 70k
USD 51,200
$40,960price paid
Lot 131
Tiffany & Co.: a ruby bracelet, circa 1930
×2.7 high estimate
Estimate USD 10k – 15k
USD 40,960
$38,400price paid
Lot 132
Van Cleef & Arpels: a sapphire, ruby and diamond 'Cascades' brooch, france, circa 1950
×0.8 high estimate
Estimate USD 30k – 50k
USD 38,400
$38,400price paid
Lot 163
A victorian diamond necklace/tiara, circa 1880
×1.3 high estimate
Estimate USD 20k – 30k
USD 38,400
$28,160price paid
Lot 67
Mauboussin: an Art Deco diamond lapel watch, france, circa 1925
×1.9 high estimate
Estimate USD 10k – 15k
USD 28,160
$20,480price paid
Lot 66
Shreve & co.: a diamond brooch/pendant, circa 1900
×1.4 high estimate
Estimate USD 10k – 15k
USD 20,480
$15,360price paid
Lot 9
René boivin: a ruby and diamond brooch, france, circa 1940
×0.9 high estimate
Estimate USD 12k – 18k
USD 15,360
$9,600price paid
Lot 161
A diamond bracelet, circa 1950
×1.2 high estimate
Estimate USD 5k – 8k
USD 9,600
$8,320price paid
Lot 162
A diamond double clip/brooch, circa 1950
×1.4 high estimate
Estimate USD 4k – 6k
USD 8,320
$7,680price paid
Lot 12
A diamond necklace, circa 1945
×1.1 high estimate
Estimate USD 5k – 7k
USD 7,680
Lot 54
Van Cleef & Arpels: a sapphire and diamond brooch, circa 1950
Estimate USD 80k – 120k
Not sold
Lot 70
A diamond bracelet, circa 1950
Estimate USD 50k – 80k
Not sold
Other jewels 56 lots
$191,000price paid
Lot 136
A diamond ring
×1.3 high estimate
Estimate USD 100k – 150k
USD 191,000
$108,450price paid
Lot 33
A diamond necklace
×0.9 high estimate
Estimate USD 85k – 125k
USD 108,450
$76,700price paid
Lot 64
A diamond ring
×1.1 high estimate
Estimate USD 50k – 70k
USD 76,700
$64,000price paid
Lot 154
An unmounted diamond
×1.3 high estimate
Estimate USD 30k – 50k
USD 64,000
$48,640price paid
Lot 63
A diamond ring
×0.9 high estimate
Estimate USD 32k – 55k
USD 48,640
$35,840price paid
Lot 30
An emerald and diamond necklace
×1.0 high estimate
Estimate USD 25k – 35k
USD 35,840
$35,840price paid
Lot 34
A Paraíba-type tourmaline and diamond ring
×1.4 high estimate
Estimate USD 18k – 25k
USD 35,840
$35,840price paid
Lot 139
A diamond stick pin
×1.6 high estimate
Estimate USD 18k – 22k
USD 35,840
$32,000price paid
Lot 50
A diamond ring
×0.9 high estimate
Estimate USD 25k – 35k
USD 32,000
$32,000price paid
Lot 37
Pair of diamond earrings
×1.3 high estimate
Estimate USD 18k – 25k
USD 32,000
$32,000price paid
Lot 59
A diamond necklace
×1.6 high estimate
Estimate USD 18k – 20k
USD 32,000
$32,000price paid
Lot 129
A diamond ring
×1.8 high estimate
Estimate USD 14k – 18k
USD 32,000
$28,160price paid
Lot 157
A diamond ring
×1.1 high estimate
Estimate USD 15k – 25k
USD 28,160
$28,160price paid
Lot 151
A rose quartz, enamel and pink sapphire cuff
×3.1 high estimate
Estimate USD 6k – 9k
USD 28,160
$25,600price paid
Lot 124
Pair of emerald and diamond earrings
×0.7 high estimate
Estimate USD 25k – 35k
USD 25,600
$25,600price paid
Lot 156
Pair of diamond and cultured pearl earrings
×0.9 high estimate
Estimate USD 22k – 28k
USD 25,600
$23,040price paid
Lot 148
A diamond necklace
×0.9 high estimate
Estimate USD 15k – 25k
USD 23,040
$21,760price paid
Lot 35
A Paraíba-type tourmaline, diamond and gem-set pendant necklace
×0.9 high estimate
Estimate USD 15k – 25k
USD 21,760
$21,760price paid
Lot 46
A gem-set and diamond necklace
×1.1 high estimate
Estimate USD 15k – 20k
USD 21,760
$17,920price paid
Lot 68
Pair of diamond brooches
×2.0 high estimate
Estimate USD 7k – 9k
USD 17,920
$16,640price paid
Lot 74
A diamond necklace
×0.9 high estimate
Estimate USD 14k – 18k
USD 16,640
$16,640price paid
Lot 16
A diamond ring
×1.1 high estimate
Estimate USD 10k – 15k
USD 16,640
$16,640price paid
Lot 26
A gold necklace
×1.8 high estimate
Estimate USD 7k – 9k
USD 16,640
$15,360price paid
Lot 43
A diamond necklace
×1.3 high estimate
Estimate USD 9k – 12k
USD 15,360
$14,080price paid
Lot 21
An 18k gold and ruby necklace
×1.2 high estimate
Estimate USD 8k – 12k
USD 14,080
$14,080price paid
Lot 23
A ruby and diamond necklace
×1.6 high estimate
Estimate USD 6k – 9k
USD 14,080
$14,080price paid
Lot 80
An 18k gold and diamond necklace
×1.6 high estimate
Estimate USD 7k – 9k
USD 14,080
$14,080price paid
Lot 103
A diamond bracelet
×1.6 high estimate
Estimate USD 7k – 9k
USD 14,080
$12,800price paid
Lot 29
A diamond ring
×1.1 high estimate
Estimate USD 8k – 12k
USD 12,800
$12,800price paid
Lot 44
An 18k gold and diamond bracelet
×1.1 high estimate
Estimate USD 9k – 12k
USD 12,800
$12,160price paid
Lot 48
A sapphire and diamond ring
×1.0 high estimate
Estimate USD 8k – 12k
USD 12,160
$11,520price paid
Lot 75
Pair of ruby and diamond earrings
×1.4 high estimate
Estimate USD 6k – 8k
USD 11,520
$10,880price paid
Lot 152
A diamond bracelet
×1.2 high estimate
Estimate USD 6k – 9k
USD 10,880
$10,880price paid
Lot 57
Pair of ruby and diamond earrings
×1.4 high estimate
Estimate USD 6k – 8k
USD 10,880
$9,600price paid
Lot 141
Group of gem-set and diamond bangles
×1.1 high estimate
Estimate USD 6k – 9k
USD 9,600
$9,600price paid
Lot 125
An emerald and diamond bracelet
×1.4 high estimate
Estimate USD 5k – 7k
USD 9,600
$8,960price paid
Lot 138
A diamond stick pin
×1.0 high estimate
Estimate USD 7k – 9k
USD 8,960
$8,320price paid
Lot 3
An 18k gold and emerald brooch
×1.5 high estimate
Estimate USD 5k – 6k
USD 8,320
$7,040price paid
Lot 27
A gold and diamond bracelet
×1.4 high estimate
Estimate USD 3k – 5k
USD 7,040
$6,400price paid
Lot 45
Pair of gem-set and diamond earclips
×0.9 high estimate
Estimate USD 5k – 7k
USD 6,400
$6,400price paid
Lot 135
A diamond brooch
×1.1 high estimate
Estimate USD 4k – 6k
USD 6,400
$6,400price paid
Lot 36
Pair of Paraíba-type tourmaline and diamond earrings
×1.3 high estimate
Estimate USD 3k – 5k
USD 6,400
$6,144price paid
Lot 4
A diamond brooch
×0.9 high estimate
Estimate USD 5k – 7k
USD 6,144
$5,760price paid
Lot 145
Pair of diamond earrings
×1.0 high estimate
Estimate USD 4k – 6k
USD 5,760
$3,584price paid
Lot 140
A diamond stick pin
×1.2 high estimate
Estimate USD 2k – 3k
USD 3,584
Lot 126
Pair of diamond earrings
Estimate USD 120k – 180k
Not sold
Lot 52
A diamond necklace
Estimate USD 90k – 150k
Not sold
Lot 128
A diamond bracelet
Estimate USD 50k – 80k
Not sold
Lot 65
An emerald and diamond necklace
Estimate USD 40k – 60k
Not sold
Lot 122
A diamond bracelet
Estimate USD 38k – 58k
Not sold
Lot 32
An emerald and diamond ring
Estimate USD 30k – 50k
Not sold
Lot 60
A moonstone and diamond cuff
Estimate USD 30k – 50k
Not sold
Lot 31
A diamond bracelet
Estimate USD 28k – 38k
Not sold
Lot 47
A gem-set and diamond cuff
Estimate USD 10k – 15k
Not sold
Lot 133
A pink sapphire and diamond ring
Estimate USD 10k – 15k
Not sold
Lot 13
A diamond bracelet
Estimate USD 8k – 12k
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 8 December 2025. Photographs © Bonhams 2025.