Jewelry market insights
Auction houses publish totals. We publish prices.
Precious Trade reads the major jewellery sales lot by lot, Christie’s today, Sotheby’s and Bonhams next. It turns them into what the trade needs: what really sold at the hammer, and what a carat is worth by stone, origin and treatment. Sale after sale, a price reference for dealers, jewellers and collectors. By gemmologist Chaïma Teisseire.
The HammerNo. 1
Christie's Geneva·Magnificent Jewels·13 May 2026
- Announced by Christie's
- CHF 51.9m
- At the hammer
- CHF 41.6m
- Buyer’s premium in the total
- CHF 10.2m
USD 53.2m · 86 of 87 lots sold
The trade figures
USD 2.64mper carat
Lot 90 · The Ocean Dream spectacular coloured diamond and diamond ring, 5.50 ct
The 35 ct white diamond of the same sale: USD 21k per carat, 127 times less.
×4.6its high estimate
Lot 51 · Early 20th century coloured diamond and diamond ring
Estimated CHF 200k–300k, hammered at CHF 1.38m.
×4.1Kashmir, no heat
Sapphires from Kashmir, unheated: USD 93k per carat on average
Every other origin: USD 23k per carat (6 stones each).
129%of the high estimates
At the hammer, the sale made CHF 41.6m against CHF 32.3m of high estimates
51 of 86 lots sold above their high estimate.
Top lots per carat 12 lots · the highest prices per carat of the sale
.jpg?mode=max)
$2,640,629per carat
Lot 90
The Ocean Dream spectacular coloured diamond and diamond ring
5.50 ct · Fancy Vivid Blue-Green · SI1
CHF 2,063,636 / ct×1.1 high estimate
Estimate CHF 7,000,000 – 10,000,000
Hammer CHF 11,350,000USD 14,523,460
Price realised* CHF 13,567,500
.jpg?mode=max)
$205,543per carat
Lot 51
Early 20th century coloured diamond and diamond ring
8.56 ct · Fancy Vivid Orange-Yellow · VS2
CHF 160,631 / ct×4.6 high estimate
Estimate CHF 200,000 – 300,000
Hammer CHF 1,375,000USD 1,759,450
Price realised* CHF 1,737,500
.jpg?mode=max)
$154,677per carat
Lot 15
Coloured diamond ring
0.91 ct · Fancy Intense Purple-Pink · SI2
CHF 120,879 / ct×0.6 high estimate
Estimate CHF 120,000 – 180,000
Hammer CHF 110,000USD 140,756
Price realised* CHF 139,700
.jpg?mode=max)
$140,078per carat
Lot 61
Bulgari sapphire and diamond ring
9.82 ct · Kashmir · No heat
CHF 109,470 / ct×1.8 high estimate
Estimate CHF 400,000 – 600,000
Hammer CHF 1,075,000USD 1,375,570
Price realised* CHF 1,365,250
.jpg?mode=max)
$126,352per carat
Lot 89
Chaumet sapphire ring
22.28 ct · Kashmir · No heat
CHF 98,743 / ct×1.1 high estimate
Estimate CHF 1,600,000 – 2,000,000
Hammer CHF 2,200,000USD 2,815,120
Price realised* CHF 2,744,000
.jpg?mode=max)
$101,441per carat
Lot 80
Gübelin sapphire and diamond ring
8.83 ct · Kashmir · No heat
CHF 79,275 / ct×1.0 high estimate
Estimate CHF 500,000 – 700,000
Hammer CHF 700,000USD 895,720
Price realised* CHF 889,000
.jpg?mode=max)
$97,597per carat
Lot 20
Art Deco sapphire and diamond ring
7.08 ct · Kashmir · No heat
CHF 76,271 / ct×1.0 high estimate
Estimate CHF 320,000 – 520,000
Hammer CHF 540,000USD 690,984
Price realised* CHF 685,800
.jpg?mode=max)
$82,350per carat
Lot 67
Coloured diamond and diamond ring
1.01 ct · Fancy Deep Orange · I1
CHF 64,356 / ct×0.8 high estimate
Estimate CHF 40,000 – 80,000
Hammer CHF 65,000USD 83,174
Price realised* CHF 82,550
.jpg?mode=max)
$73,562per carat
Lot 54
Hemmerle sapphire ring
6.61 ct · Kashmir · No heat
CHF 57,489 / ct×0.9 high estimate
Estimate CHF 240,000 – 400,000
Hammer CHF 380,000USD 486,248
Price realised* CHF 482,600
.jpg?mode=max)
$63,627per carat
Lot 9
Coloured diamond and diamond ring
1.81 ct · Fancy Intense Pink · I2
CHF 49,724 / ct×1.1 high estimate
Estimate CHF 60,000 – 80,000
Hammer CHF 90,000USD 115,164
Price realised* CHF 114,300
.jpg?mode=max)
$59,401per carat
Lot 79
Harry Winston diamond pendant
10.34 ct · D colour
CHF 46,422 / ct×0.9 high estimate
Estimate CHF 400,000 – 550,000
Hammer CHF 480,000USD 614,208
Price realised* CHF 609,600
.jpg?mode=max)
$53,519per carat
Lot 11
Cusi coloured diamond, emerald and diamond brooch/pendant
2.63 ct · Fancy Vivid Yellow · VS1
CHF 41,825 / ct×1.6 high estimate
Estimate CHF 50,000 – 70,000
Hammer CHF 110,000USD 140,756
Price realised* CHF 139,700
Sapphires 13 lots
Kashmir 5 lots
$140,078per carat
Lot 61
Bulgari sapphire and diamond ring
9.82 ct · Kashmir · No heat
CHF 109,470 / ct×1.8 high estimate
Estimate CHF 400,000 – 600,000
Hammer CHF 1,075,000USD 1,375,570
Price realised* CHF 1,365,250
$126,352per carat
Lot 89
Chaumet sapphire ring
22.28 ct · Kashmir · No heat
CHF 98,743 / ct×1.1 high estimate
Estimate CHF 1,600,000 – 2,000,000
Hammer CHF 2,200,000USD 2,815,120
Price realised* CHF 2,744,000
$101,441per carat
Lot 80
Gübelin sapphire and diamond ring
8.83 ct · Kashmir · No heat
CHF 79,275 / ct×1.0 high estimate
Estimate CHF 500,000 – 700,000
Hammer CHF 700,000USD 895,720
Price realised* CHF 889,000
$97,597per carat
Lot 20
Art Deco sapphire and diamond ring
7.08 ct · Kashmir · No heat
CHF 76,271 / ct×1.0 high estimate
Estimate CHF 320,000 – 520,000
Hammer CHF 540,000USD 690,984
Price realised* CHF 685,800
$73,562per carat
Lot 54
Hemmerle sapphire ring
6.61 ct · Kashmir · No heat
CHF 57,489 / ct×0.9 high estimate
Estimate CHF 240,000 – 400,000
Hammer CHF 380,000USD 486,248
Price realised* CHF 482,600
Burma 3 lots
.jpg?mode=max)
$41,579per carat
Lot 28
JAR sapphire ring
15.08 ct · Burma · No heat
CHF 32,493 / ct×3.1 high estimate
Estimate CHF 100,000 – 160,000
Hammer CHF 490,000USD 627,004
Price realised* CHF 622,300
.jpg?mode=max)
$22,799per carat
Lot 25
Coloured sapphire and diamond ring
13.47 ct · Burma · No heat
CHF 17,817 / ct×0.9 high estimate
Estimate CHF 220,000 – 280,000
Hammer CHF 240,000USD 307,104
Price realised* CHF 304,800
.jpg?mode=max)
$20,722per carat
Lot 52
Chatila sapphire and diamond ring
7.41 ct · Burma · No heat
CHF 16,194 / ct×0.8 high estimate
Estimate CHF 80,000 – 160,000
Hammer CHF 120,000USD 153,552
Price realised* CHF 152,400
Origin not determinable 1 lot
Laboratories disagree 3 lots
.jpg?mode=max)
$23,451per carat
Lot 8
Important Harry Winston sapphire and diamond ring
76.39 ct · Burma (Gübelin) / Ceylon (SSEF) · No heat
CHF 18,327 / ct×1.3 high estimate
Estimate CHF 600,000 – 1,100,000
Hammer CHF 1,400,000USD 1,791,440
Price realised* CHF 1,768,000
.jpg?mode=max)
$16,503per carat
Lot 50
Sapphire and garnet ring
40.32 ct · Kashmir (Gübelin) / Ceylon (SSEF) · No heat
CHF 12,897 / ct×2.3 high estimate
Estimate CHF 140,000 – 230,000
Hammer CHF 520,000USD 665,392
Price realised* CHF 660,400
.jpg?mode=max)
$9,502per carat
Lot 57
Sapphire and diamond ring
10.10 ct · Not determinable (Gübelin) / Ceylon (AGL) · No heat
CHF 7,426 / ct×0.8 high estimate
Estimate CHF 70,000 – 90,000
Hammer CHF 75,000USD 95,970
Price realised* CHF 95,250
Rubies 4 lots
Burma 4 lots
.jpg?mode=max)
$39,451per carat
Lot 70
Ruby and diamond ring
3.73 ct · Burma · No heat
CHF 30,831 / ct×0.8 high estimate
Estimate CHF 100,000 – 150,000
Hammer CHF 115,000USD 147,154
Price realised* CHF 146,050
.jpg?mode=max)
$15,970per carat
Lot 77
Chaumet ruby and diamond ring
6.41 ct · Burma · No heat
CHF 12,480 / ct×0.8 high estimate
Estimate CHF 70,000 – 100,000
Hammer CHF 80,000USD 102,368
Price realised* CHF 101,600
.jpg?mode=max)
$9,211per carat
Lot 12
Ruby and diamond ring
9.03 ct · Burma · No heat
CHF 7,198 / ct×0.9 high estimate
Estimate CHF 55,000 – 75,000
Hammer CHF 65,000USD 83,174
Price realised* CHF 82,550
.jpg?mode=max)
Carat weight not given by the sale
Lot 4
Cartier ruby ring
Burma · No heat
×1.8 high estimate
Estimate CHF 40,000 – 60,000
Hammer CHF 105,000USD 134,358
Price realised* CHF 133,350
Emeralds 7 lots
Colombia 6 lots
.jpg?mode=max)
$27,309per carat
Lot 48
Bulgari emerald and diamond ring
3.28 ct · Colombia
CHF 21,341 / ct×0.9 high estimate
Estimate CHF 60,000 – 80,000
Hammer CHF 70,000USD 89,572
Price realised* CHF 88,900
.jpg?mode=max)
$20,098per carat
Lot 86
Emerald and diamond ring
7.64 ct · Colombia · No oil
CHF 15,707 / ct×0.6 high estimate
Estimate CHF 120,000 – 200,000
Hammer CHF 120,000USD 153,552
Price realised* CHF 152,400
.jpg?mode=max)
$16,397per carat
Lot 63
Van Cleef & Arpels emerald and diamond earrings
Colombia · Minor oil
CHF 12,814 / ct · 2 stones, 19.51 ct×1.3 high estimate
Estimate CHF 160,000 – 200,000
Hammer CHF 250,000USD 319,900
Price realised* CHF 317,500
.jpg?mode=max)
$15,632per carat
Lot 10
Unmounted emerald
5.73 ct · Colombia · Minor oil
CHF 12,216 / ct×0.9 high estimate
Estimate CHF 60,000 – 80,000
Hammer CHF 70,000USD 89,572
Price realised* CHF 88,900
.jpg?mode=max)
$12,383per carat
Lot 74
Emerald and diamond ring
6.20 ct · Colombia
CHF 9,677 / ct×1.0 high estimate
Estimate CHF 40,000 – 60,000
Hammer CHF 60,000USD 76,776
Price realised* CHF 76,200
.jpg?mode=max)
Carat weight not given by the sale
Lot 35
Emerald and diamond ring, mounted by Cartier
Colombia · Minor oil
×0.6 high estimate
Estimate CHF 160,000 – 240,000
Hammer CHF 140,000USD 179,144
Price realised* CHF 177,800
.jpg?mode=max)
Coloured diamonds 9 lots
$2,640,629per carat
Lot 90
The Ocean Dream spectacular coloured diamond and diamond ring
5.50 ct · Fancy Vivid Blue-Green · SI1
CHF 2,063,636 / ct×1.1 high estimate
Estimate CHF 7,000,000 – 10,000,000
Hammer CHF 11,350,000USD 14,523,460
Price realised* CHF 13,567,500
$205,543per carat
Lot 51
Early 20th century coloured diamond and diamond ring
8.56 ct · Fancy Vivid Orange-Yellow · VS2
CHF 160,631 / ct×4.6 high estimate
Estimate CHF 200,000 – 300,000
Hammer CHF 1,375,000USD 1,759,450
Price realised* CHF 1,737,500
$154,677per carat
Lot 15
Coloured diamond ring
0.91 ct · Fancy Intense Purple-Pink · SI2
CHF 120,879 / ct×0.6 high estimate
Estimate CHF 120,000 – 180,000
Hammer CHF 110,000USD 140,756
Price realised* CHF 139,700
$82,350per carat
Lot 67
Coloured diamond and diamond ring
1.01 ct · Fancy Deep Orange · I1
CHF 64,356 / ct×0.8 high estimate
Estimate CHF 40,000 – 80,000
Hammer CHF 65,000USD 83,174
Price realised* CHF 82,550
$63,627per carat
Lot 9
Coloured diamond and diamond ring
1.81 ct · Fancy Intense Pink · I2
CHF 49,724 / ct×1.1 high estimate
Estimate CHF 60,000 – 80,000
Hammer CHF 90,000USD 115,164
Price realised* CHF 114,300
$53,519per carat
Lot 11
Cusi coloured diamond, emerald and diamond brooch/pendant
2.63 ct · Fancy Vivid Yellow · VS1
CHF 41,825 / ct×1.6 high estimate
Estimate CHF 50,000 – 70,000
Hammer CHF 110,000USD 140,756
Price realised* CHF 139,700
.jpg?mode=max)
$29,113per carat
Lot 40
Impressive Van Cleef & Arpels coloured diamond and diamond earrings
Fancy Vivid Yellow · VVS1
CHF 22,752 / ct · 2 stones, 37.36 ct×0.9 high estimate
Estimate CHF 650,000 – 950,000
Hammer CHF 850,000USD 1,087,660
Price realised* CHF 1,079,500
.jpg?mode=max)
$20,231per carat
Lot 65
Coloured diamond pendant
10.12 ct · Fancy Brown-Pink · VVS1
CHF 15,810 / ct×0.6 high estimate
Estimate CHF 150,000 – 250,000
Hammer CHF 160,000USD 204,736
Price realised* CHF 203,200
.jpg?mode=max)
Lot 38
Coloured diamond ring
3.81 ct · Fancy Purplish Pink · I1
Estimate CHF 320,000 – 480,000
Not sold
White diamonds 8 lots
$59,401per carat
Lot 79
Harry Winston diamond pendant
10.34 ct · D colour
CHF 46,422 / ct×0.9 high estimate
Estimate CHF 400,000 – 550,000
Hammer CHF 480,000USD 614,208
Price realised* CHF 609,600
.jpg?mode=max)
$33,134per carat
Lot 5
Cartier diamond ring
8.11 ct · D colour · VVS1
CHF 25,894 / ct×0.7 high estimate
Estimate CHF 180,000 – 320,000
Hammer CHF 210,000USD 268,716
Price realised* CHF 266,700
.jpg?mode=max)
$24,727per carat
Lot 55
Cartier Art Deco diamond ring
10.35 ct · I colour · VS1
CHF 19,324 / ct×1.1 high estimate
Estimate CHF 110,000 – 190,000
Hammer CHF 200,000USD 255,920
Price realised* CHF 254,000
.jpg?mode=max)
$20,774per carat
Lot 72
Diamond ring
35.11 ct · K colour · VS2
CHF 16,235 / ct×1.8 high estimate
Estimate CHF 240,000 – 320,000
Hammer CHF 570,000USD 729,372
Price realised* CHF 723,900
.jpg?mode=max)
$14,915per carat
Lot 68
Diamond ring
29.17 ct · VS2
CHF 11,656 / ct×1.2 high estimate
Estimate CHF 180,000 – 280,000
Hammer CHF 340,000USD 435,064
Price realised* CHF 431,800
.jpg?mode=max)
$14,038per carat
Lot 59
Diamond ring
23.70 ct · M colour · VS1
CHF 10,970 / ct×1.5 high estimate
Estimate CHF 110,000 – 170,000
Hammer CHF 260,000USD 332,696
Price realised* CHF 330,200
.jpg?mode=max)
$10,039per carat
Lot 56
Diamond earrings
L colour · VS2
CHF 7,846 / ct · 2 stones, 30.59 ct×1.7 high estimate
Estimate CHF 90,000 – 140,000
Hammer CHF 240,000USD 307,104
Price realised* CHF 304,800
.jpg?mode=max)
$6,173per carat
Lot 71
Diamond and sapphire earclips
N colour · VS1
CHF 4,824 / ct · 2 stones, 14.51 ct×0.6 high estimate
Estimate CHF 75,000 – 110,000
Hammer CHF 70,000USD 89,572
Price realised* CHF 88,900
Signed jewels 50 lots
Bhagat 2 lots
.jpg?mode=max)
Lot 24
Bhagat natural pearl, pearl and diamond ring
×1.2 high estimate
Estimate CHF 160,000 – 200,000
Hammer CHF 240,000USD 307,104
Price realised* CHF 304,800
.jpg?mode=max)
Lot 23
Bhagat pearl, seed pearl and diamond earrings
×4.4 high estimate
Estimate CHF 32,000 – 55,000
Hammer CHF 240,000USD 307,104
Price realised* CHF 304,800
Bulgari 5 lots
$140,078per carat
Lot 61
Bulgari sapphire and diamond ring
9.82 ct · Kashmir · No heat
CHF 109,470 / ct×1.8 high estimate
Estimate CHF 400,000 – 600,000
Hammer CHF 1,075,000USD 1,375,570
Price realised* CHF 1,365,250
.jpg?mode=max)
Lot 6
Bulgari diamond necklace
×0.8 high estimate
Estimate CHF 120,000 – 180,000
Hammer CHF 140,000USD 179,144
Price realised* CHF 177,800
.jpg?mode=max)
$18,121per carat
Lot 53
Bulgari sapphire and diamond necklace
9.18 ct · Not determinable · Heated
CHF 14,161 / ct×1.9 high estimate
Estimate CHF 50,000 – 70,000
Hammer CHF 130,000USD 166,348
Price realised* CHF 165,100
.jpg?mode=max)
Lot 7
Bulgari diamond and onyx 'Serpenti' lady'S wristwatch
×0.8 high estimate
Estimate CHF 95,000 – 140,000
Hammer CHF 115,000USD 147,154
Price realised* CHF 146,050
$27,309per carat
Lot 48
Bulgari emerald and diamond ring
3.28 ct · Colombia
CHF 21,341 / ct×0.9 high estimate
Estimate CHF 60,000 – 80,000
Hammer CHF 70,000USD 89,572
Price realised* CHF 88,900
Cartier 22 lots
.jpg?mode=max)
Carat weight not given by the sale
Lot 82
Cartier Art Deco multi-gem 'Tutti Frutti' clip-brooch
×1.3 high estimate
Estimate CHF 480,000 – 630,000
Hammer CHF 830,000USD 1,062,068
Price realised* CHF 1,054,100
.jpg?mode=max)
Lot 3
Cartier pair of coloured diamond, diamond and onyx 'Tiger' cuffs
×1.9 high estimate
Estimate CHF 280,000 – 360,000
Hammer CHF 680,000USD 870,128
Price realised* CHF 863,600
.jpg?mode=max)
Lot 21
Cartier Belle Époque natural pearl and diamond 'Cravate' necklace
×1.4 high estimate
Estimate CHF 260,000 – 480,000
Hammer CHF 660,000USD 844,536
Price realised* CHF 838,200
.jpg?mode=max)
Carat weight not given by the sale
Lot 22
Impressive Cartier Art Deco diamond tiara
×1.1 high estimate
Estimate CHF 260,000 – 480,000
Hammer CHF 550,000USD 703,780
Price realised* CHF 698,500
.jpg?mode=max)
Lot 41
Rare Cartier Art Deco emerald, onyx and diamond necklace
×1.3 high estimate
Estimate CHF 210,000 – 310,000
Hammer CHF 390,000USD 499,044
Price realised* CHF 495,300
.jpg?mode=max)
Lot 83
Cartier Art Deco emerald, pearl and diamond sautoir
×0.9 high estimate
Estimate CHF 240,000 – 400,000
Hammer CHF 350,000USD 447,860
Price realised* CHF 444,500
.jpg?mode=max)
Lot 2
Cartier coloured diamond, diamond, onyx and emerald 'Tiger' clip-brooch
×1.2 high estimate
Estimate CHF 170,000 – 230,000
Hammer CHF 280,000USD 358,288
Price realised* CHF 355,600
.jpg?mode=max)
Lot 78
Cartier multi-gem flamingo brooch
×1.3 high estimate
Estimate CHF 160,000 – 200,000
Hammer CHF 250,000USD 319,900
Price realised* CHF 317,500
.jpg?mode=max)
Lot 85
Cartier diamond, onyx & sapphire tiger bangle
×0.8 high estimate
Estimate CHF 230,000 – 320,000
Hammer CHF 240,000USD 307,104
Price realised* CHF 304,800
.jpg?mode=max)
$11,848per carat
Lot 32
Cartier spinel and diamond ring
23.76 ct · Tajikistan · No heat
CHF 9,259 / ct×1.0 high estimate
Estimate CHF 140,000 – 230,000
Hammer CHF 220,000USD 281,512
Price realised* CHF 279,400
$33,134per carat
Lot 5
Cartier diamond ring
8.11 ct · D colour · VVS1
CHF 25,894 / ct×0.7 high estimate
Estimate CHF 180,000 – 320,000
Hammer CHF 210,000USD 268,716
Price realised* CHF 266,700
.jpg?mode=max)
Lot 69
Cartier sapphire, diamond, emerald and onyx white tiger bangle
×0.8 high estimate
Estimate CHF 180,000 – 280,000
Hammer CHF 210,000USD 268,716
Price realised* CHF 266,700
$24,727per carat
Lot 55
Cartier Art Deco diamond ring
10.35 ct · I colour · VS1
CHF 19,324 / ct×1.1 high estimate
Estimate CHF 110,000 – 190,000
Hammer CHF 200,000USD 255,920
Price realised* CHF 254,000
.jpg?mode=max)
Lot 31
Cartier group of diamond 'C de Cartier' jewellery
×1.1 high estimate
Estimate CHF 90,000 – 150,000
Hammer CHF 160,000USD 204,736
Price realised* CHF 203,200
Carat weight not given by the sale
Lot 35
Emerald and diamond ring, mounted by Cartier
Colombia · Minor oil
×0.6 high estimate
Estimate CHF 160,000 – 240,000
Hammer CHF 140,000USD 179,144
Price realised* CHF 177,800
.jpg?mode=max)
Lot 45
Cartier diamond, emerald and onyx 'Panthère' bangle
×1.2 high estimate
Estimate CHF 75,000 – 110,000
Hammer CHF 130,000USD 166,348
Price realised* CHF 165,100
.jpg?mode=max)
Lot 66
Cartier diamond 'Juste un clou' bangle
×1.7 high estimate
Estimate CHF 55,000 – 75,000
Hammer CHF 130,000USD 166,348
Price realised* CHF 165,100
Carat weight not given by the sale
Lot 4
Cartier ruby ring
Burma · No heat
×1.8 high estimate
Estimate CHF 40,000 – 60,000
Hammer CHF 105,000USD 134,358
Price realised* CHF 133,350
.jpg?mode=max)
Lot 37
Cartier diamond 'Trinity' bangle
×1.1 high estimate
Estimate CHF 65,000 – 90,000
Hammer CHF 100,000USD 127,960
Price realised* CHF 127,000
.jpg?mode=max)
Lot 36
Cartier Art Deco diamond lady'S wristwatch
×1.3 high estimate
Estimate CHF 48,000 – 60,000
Hammer CHF 80,000USD 102,368
Price realised* CHF 101,600
.jpg?mode=max)
Lot 1
Cartier coloured diamond, diamond and onyx 'Tiger' earclips
×1.5 high estimate
Estimate CHF 38,000 – 55,000
Hammer CHF 80,000USD 102,368
Price realised* CHF 101,600
.jpg?mode=max)
Lot 34
Cartier Art Deco gold lady'S wristwatch
×1.7 high estimate
Estimate CHF 32,000 – 48,000
Hammer CHF 80,000USD 102,368
Price realised* CHF 101,600
Chaumet 3 lots
$126,352per carat
Lot 89
Chaumet sapphire ring
22.28 ct · Kashmir · No heat
CHF 98,743 / ct×1.1 high estimate
Estimate CHF 1,600,000 – 2,000,000
Hammer CHF 2,200,000USD 2,815,120
Price realised* CHF 2,744,000
.jpg?mode=max)
Lot 18
Chaumet mid-20th century natural pearl and diamond necklace
×0.9 high estimate
Estimate CHF 90,000 – 140,000
Hammer CHF 130,000USD 166,348
Price realised* CHF 165,100
$15,970per carat
Lot 77
Chaumet ruby and diamond ring
6.41 ct · Burma · No heat
CHF 12,480 / ct×0.8 high estimate
Estimate CHF 70,000 – 100,000
Hammer CHF 80,000USD 102,368
Price realised* CHF 101,600
.jpg?mode=max)
Harry Winston 2 lots
$23,451per carat
Lot 8
Important Harry Winston sapphire and diamond ring
76.39 ct · Burma (Gübelin) / Ceylon (SSEF) · No heat
CHF 18,327 / ct×1.3 high estimate
Estimate CHF 600,000 – 1,100,000
Hammer CHF 1,400,000USD 1,791,440
Price realised* CHF 1,768,000
$59,401per carat
Lot 79
Harry Winston diamond pendant
10.34 ct · D colour
CHF 46,422 / ct×0.9 high estimate
Estimate CHF 400,000 – 550,000
Hammer CHF 480,000USD 614,208
Price realised* CHF 609,600
JAR 6 lots
$41,579per carat
Lot 28
JAR sapphire ring
15.08 ct · Burma · No heat
CHF 32,493 / ct×3.1 high estimate
Estimate CHF 100,000 – 160,000
Hammer CHF 490,000USD 627,004
Price realised* CHF 622,300
.jpg?mode=max)
Lot 30
JAR sapphire and diamond earclips
×2.3 high estimate
Estimate CHF 80,000 – 120,000
Hammer CHF 280,000USD 358,288
Price realised* CHF 355,600
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Lot 44
JAR diamond and pearl necklace
×2.3 high estimate
Estimate CHF 50,000 – 80,000
Hammer CHF 180,000USD 230,328
Price realised* CHF 228,600
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Lot 27
JAR sapphire, coloured diamond and diamond earclips
×1.2 high estimate
Estimate CHF 80,000 – 120,000
Hammer CHF 145,000USD 185,542
Price realised* CHF 184,150
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Lot 26
JAR spinel and diamond earclips
×0.8 high estimate
Estimate CHF 100,000 – 160,000
Hammer CHF 130,000USD 166,348
Price realised* CHF 165,100
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Lot 29
JAR spinel hoop earclips
×1.5 high estimate
Estimate CHF 32,000 – 55,000
Hammer CHF 80,000USD 102,368
Price realised* CHF 101,600
René Lalique 1 lot
Van Cleef & Arpels 7 lots
$29,113per carat
Lot 40
Impressive Van Cleef & Arpels coloured diamond and diamond earrings
Fancy Vivid Yellow · VVS1
CHF 22,752 / ct · 2 stones, 37.36 ct×0.9 high estimate
Estimate CHF 650,000 – 950,000
Hammer CHF 850,000USD 1,087,660
Price realised* CHF 1,079,500
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Lot 87
Van Cleef & Arpels mid-20th century diamond necklace
×2.0 high estimate
Estimate CHF 140,000 – 180,000
Hammer CHF 360,000USD 460,656
Price realised* CHF 457,200
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Lot 62
Van Cleef & Arpels emerald and diamond transformable necklace
×2.3 high estimate
Estimate CHF 80,000 – 120,000
Hammer CHF 280,000USD 358,288
Price realised* CHF 355,600
$16,397per carat
Lot 63
Van Cleef & Arpels emerald and diamond earrings
Colombia · Minor oil
CHF 12,814 / ct · 2 stones, 19.51 ct×1.3 high estimate
Estimate CHF 160,000 – 200,000
Hammer CHF 250,000USD 319,900
Price realised* CHF 317,500
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Lot 81
Van Cleef & Arpels sapphire and diamond 'Fuchsia' mystery-set clip-brooch
×1.5 high estimate
Estimate CHF 100,000 – 150,000
Hammer CHF 230,000USD 294,308
Price realised* CHF 292,100
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Carat weight not given by the sale
Lot 14
Van Cleef & Arpels multi-gem transformable sautoir
×1.5 high estimate
Estimate CHF 90,000 – 140,000
Hammer CHF 210,000USD 268,716
Price realised* CHF 266,700
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Lot 13
Van Cleef & Arpels ruby and diamond earrings
×1.2 high estimate
Estimate CHF 30,000 – 50,000
Hammer CHF 60,000USD 76,776
Price realised* CHF 76,200
Vintage 16 lots
$205,543per carat
Lot 51
Early 20th century coloured diamond and diamond ring
8.56 ct · Fancy Vivid Orange-Yellow · VS2
CHF 160,631 / ct×4.6 high estimate
Estimate CHF 200,000 – 300,000
Hammer CHF 1,375,000USD 1,759,450
Price realised* CHF 1,737,500
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Lot 43
Exceptional Boucheron Art Deco ruby, emerald, onyx and diamond écharpe necklace
×2.4 high estimate
Estimate CHF 240,000 – 400,000
Hammer CHF 950,000USD 1,215,620
Price realised* CHF 1,206,500
Carat weight not given by the sale
Lot 82
Cartier Art Deco multi-gem 'Tutti Frutti' clip-brooch
×1.3 high estimate
Estimate CHF 480,000 – 630,000
Hammer CHF 830,000USD 1,062,068
Price realised* CHF 1,054,100
Lot 21
Cartier Belle Époque natural pearl and diamond 'Cravate' necklace
×1.4 high estimate
Estimate CHF 260,000 – 480,000
Hammer CHF 660,000USD 844,536
Price realised* CHF 838,200
Carat weight not given by the sale
Lot 22
Impressive Cartier Art Deco diamond tiara
×1.1 high estimate
Estimate CHF 260,000 – 480,000
Hammer CHF 550,000USD 703,780
Price realised* CHF 698,500
$97,597per carat
Lot 20
Art Deco sapphire and diamond ring
7.08 ct · Kashmir · No heat
CHF 76,271 / ct×1.0 high estimate
Estimate CHF 320,000 – 520,000
Hammer CHF 540,000USD 690,984
Price realised* CHF 685,800
Lot 41
Rare Cartier Art Deco emerald, onyx and diamond necklace
×1.3 high estimate
Estimate CHF 210,000 – 310,000
Hammer CHF 390,000USD 499,044
Price realised* CHF 495,300
Lot 87
Van Cleef & Arpels mid-20th century diamond necklace
×2.0 high estimate
Estimate CHF 140,000 – 180,000
Hammer CHF 360,000USD 460,656
Price realised* CHF 457,200
Lot 83
Cartier Art Deco emerald, pearl and diamond sautoir
×0.9 high estimate
Estimate CHF 240,000 – 400,000
Hammer CHF 350,000USD 447,860
Price realised* CHF 444,500
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Lot 42
Art Deco garnet and diamond necklace, attributed to Cartier
×1.0 high estimate
Estimate CHF 160,000 – 240,000
Hammer CHF 240,000USD 307,104
Price realised* CHF 304,800
$24,727per carat
Lot 55
Cartier Art Deco diamond ring
10.35 ct · I colour · VS1
CHF 19,324 / ct×1.1 high estimate
Estimate CHF 110,000 – 190,000
Hammer CHF 200,000USD 255,920
Price realised* CHF 254,000
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Lot 19
Rare René Lalique Art Nouveau glass scarab necklace
×1.5 high estimate
Estimate CHF 80,000 – 120,000
Hammer CHF 180,000USD 230,328
Price realised* CHF 228,600
Lot 18
Chaumet mid-20th century natural pearl and diamond necklace
×0.9 high estimate
Estimate CHF 90,000 – 140,000
Hammer CHF 130,000USD 166,348
Price realised* CHF 165,100
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Carat weight not given by the sale
Lot 17
Belle Époque sapphire and diamond brooch/pendant
Ceylon · No heat
×1.0 high estimate
Estimate CHF 55,000 – 90,000
Hammer CHF 90,000USD 115,164
Price realised* CHF 114,300
Lot 36
Cartier Art Deco diamond lady'S wristwatch
×1.3 high estimate
Estimate CHF 48,000 – 60,000
Hammer CHF 80,000USD 102,368
Price realised* CHF 101,600
Lot 34
Cartier Art Deco gold lady'S wristwatch
×1.7 high estimate
Estimate CHF 32,000 – 48,000
Hammer CHF 80,000USD 102,368
Price realised* CHF 101,600
© Christie’s Images Ltd. 2026
Next sales·Christie's Geneva·2 live sales
10 November 2026
Magnificent Jewels & Exceptional Jewels and Objects of Elegance
Two live sales on one date at the Hôtel des Bergues: Magnificent Jewels, and the first part of a single collection of twentieth-century jewels, Art Deco vanity cases and gold boxes.
- Live auctions in
- —
- Lots
- 123+
- Price to beat
- CHF 20.5m
Price to beat: The Mellon Blue, 9.51 ct Fancy Vivid blue diamond, Magnificent Jewels, Christie’s Geneva, 11 November 2025: the same sale, one year earlier.
Why Precious Trade
- The figures exist, but not in a usable form. Auction results include up to 27% of buyer’s premium, are never given per carat, and bury origin and treatment in the laboratory reports. We read every lot so you don’t have to.
- Coloured stones have almost no public price reference. White diamonds have trade price lists; an unheated Kashmir sapphire or a no-oil emerald does not. Auctions are one of the few sources of real prices.
- A gemmologist’s reading. Heated or not, oil or no oil, and the laboratories that disagree on an origin: the details that make the price.
- Sale after sale, a trend. One sale is a snapshot. Season after season, Precious Trade builds the price history of the stones the trade deals in.
Diamond Data Insights
Sapphire Data Insights
Emerald Data Insights
