Market Insight – Christie's Geneva: What May's Results Tell Us About Tomorrow·Read on Precious Talk

$72.2m in total, buyer’s premium included

115 of 115 lots sold

The sale on christies.com ↗︎

Top lots per carat 12 lots · the highest prices per carat of the sale

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$2,036,264per carat Lot 19 Exceptional coloured diamond, diamond and ruby ballerina ring, mounted by Boucheron 6.24 ct · Fancy Deep Blue · VVS2 ×1.6 high estimate Estimate USD 5.37m – 7.76m USD 12,706,288$2,036,264 per carat $1,585,236per carat Lot 43 Rare Graff coloured diamond and diamond ring 3.68 ct · Fancy Vivid Blue · VVS2 ×1.3 high estimate Estimate USD 3.22m – 4.42m USD 5,833,667$1,585,236 per carat $410,220per carat Lot 110 Important ruby and diamond ring 10.17 ct · Burma · No heat ×5.4 high estimate Estimate USD 537k – 776k USD 4,171,938$410,220 per carat $179,281per carat Lot 86 Sapphire and diamond ring 13.80 ct · Kashmir · No heat ×2.6 high estimate Estimate USD 717k – 955k USD 2,474,084$179,281 per carat $164,897per carat Lot 58 JAR coloured diamond, coloured sapphire and diamond 'Bonnet' ring 0.73 ct · Fancy Vivid Yellowish Orange · SI2 ×1.6 high estimate Estimate USD 54k – 78k USD 120,375$164,897 per carat $159,791per carat Lot 82 Important coloured diamond and diamond ring 11.64 ct · Fancy Light Blue · VS2 ×0.9 high estimate Estimate USD 1.55m – 2.15m USD 1,859,967$159,791 per carat $131,854per carat Lot 113 Rare Harry Winston sapphire and diamond ring 9.70 ct · Kashmir · No heat ×1.8 high estimate Estimate USD 478k – 717k USD 1,278,988$131,854 per carat $112,755per carat Lot 5 Sapphire and diamond ring, mounted by Boucheron 7.74 ct · Kashmir · No heat ×1.2 high estimate Estimate USD 597k – 717k USD 872,721$112,755 per carat $95,637per carat Lot 10 Nardi sapphire and diamond ring 4.72 ct · Kashmir · No heat ×2.1 high estimate Estimate USD 167k – 215k USD 451,408$95,637 per carat $72,361per carat Lot 32 Coloured diamond ring 7.07 ct · Fancy Vivid Yellow · VVS1 ×0.7 high estimate Estimate USD 502k – 717k USD 511,595$72,361 per carat $72,314per carat Lot 76 Diamond pendant 10.82 ct · D colour ×1.1 high estimate Estimate USD 502k – 717k USD 782,440$72,314 per carat $72,081per carat Lot 20 Sapphire and diamond ring 5.01 ct · Kashmir · No heat ×1.2 high estimate Estimate USD 215k – 299k USD 361,126$72,081 per carat

Sapphires 20 lots

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AllKashmir 6Ceylon 9Burma 2Origin not reported 1Laboratories disagree 1Origin not determinable 1

$179,281per carat Lot 86 Sapphire and diamond ring 13.80 ct · Kashmir · No heat ×2.6 high estimate Estimate USD 717k – 955k USD 2,474,084$179,281 per carat $131,854per carat Lot 113 Rare Harry Winston sapphire and diamond ring 9.70 ct · Kashmir · No heat ×1.8 high estimate Estimate USD 478k – 717k USD 1,278,988$131,854 per carat $112,755per carat Lot 5 Sapphire and diamond ring, mounted by Boucheron 7.74 ct · Kashmir · No heat ×1.2 high estimate Estimate USD 597k – 717k USD 872,721$112,755 per carat $95,637per carat Lot 10 Nardi sapphire and diamond ring 4.72 ct · Kashmir · No heat ×2.1 high estimate Estimate USD 167k – 215k USD 451,408$95,637 per carat $72,081per carat Lot 20 Sapphire and diamond ring 5.01 ct · Kashmir · No heat ×1.2 high estimate Estimate USD 215k – 299k USD 361,126$72,081 per carat $30,296per carat Lot 109 Early 20th century sapphire and diamond brooch 5.96 ct · Kashmir · No heat ×1.0 high estimate Estimate USD 119k – 179k USD 180,563$30,296 per carat $37,685per carat Lot 70 Rare pederzani sapphire and diamond pendant 22.36 ct · Ceylon · No heat ×1.8 high estimate Estimate USD 299k – 478k USD 842,628$37,685 per carat $19,236per carat Lot 89 Sapphire and diamond ring 14.08 ct · Ceylon · No heat ×1.5 high estimate Estimate USD 119k – 179k USD 270,845$19,236 per carat $16,194per carat Lot 104 Sapphire and diamond brooch / pendant 11.15 ct · Ceylon · No heat ×1.3 high estimate Estimate USD 96k – 143k USD 180,563$16,194 per carat $15,608per carat Lot 31 Unmounted sapphire 45.31 ct · Ceylon · No heat ×1.9 high estimate Estimate USD 263k – 382k USD 707,205$15,608 per carat $9,718per carat Lot 75 Sapphire and diamond ring 18.58 ct · Ceylon · No heat ×1.5 high estimate Estimate USD 84k – 119k USD 180,563$9,718 per carat $6,692per carat Lot 105 Sapphire and diamond ring 21.36 ct · Ceylon · No heat ×0.8 high estimate Estimate USD 119k – 179k USD 142,946$6,692 per carat $4,460per carat Lot 84 Sapphire and diamond necklace 28.68 ct · Ceylon · Heated ×0.7 high estimate Estimate USD 119k – 179k USD 127,899$4,460 per carat $255,798price paid Lot 25 Antique sapphire and diamond brooch Ceylon · No heat ×2.1 high estimate Estimate USD 84k – 119k USD 255,798 $127,899price paid Lot 28 Belle Époque sapphire and diamond brooch / pendant Ceylon · No heat ×1.5 high estimate Estimate USD 60k – 84k USD 127,899 $12,960per carat Lot 74 Sapphire and diamond ring 11.03 ct · Burma · No heat ×1.0 high estimate Estimate USD 96k – 143k USD 142,946$12,960 per carat $11,434per carat Lot 101 Sapphire and diamond ring 6.58 ct · Burma · No heat ×1.1 high estimate Estimate USD 60k – 72k USD 75,235$11,434 per carat $40,202per carat Lot 63 JAR sapphire and diamond ring 13.10 ct · No heat ×2.8 high estimate Estimate USD 131k – 191k USD 526,642$40,202 per carat $17,595per carat Lot 102 Sapphire and diamond ring 12.40 ct · Ceylon (SSEF) / Madagascar (AGL) · No heat ×2.6 high estimate Estimate USD 60k – 84k USD 218,180$17,595 per carat $10,091per carat Lot 61 JAR sapphire, coloured sapphire and diamond ring 28.33 ct · Not determinable · No heat ×1.5 high estimate Estimate USD 131k – 191k USD 285,891$10,091 per carat

Rubies 3 lots

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AllBurma 2Thailand 1

$410,220per carat Lot 110 Important ruby and diamond ring 10.17 ct · Burma · No heat ×5.4 high estimate Estimate USD 537k – 776k USD 4,171,938$410,220 per carat $62,479per carat Lot 108 Rare antique ruby, natural pearl and diamond ring 2.89 ct · Burma · No heat ×1.9 high estimate Estimate USD 72k – 96k USD 180,563$62,479 per carat $38,430per carat Lot 71 Ruby and diamond ring 10.18 ct · Thailand · Heated ×2.5 high estimate Estimate USD 107k – 155k USD 391,220$38,430 per carat

Emeralds 7 lots

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Colombia

$70,690per carat Lot 112 Important emerald and diamond ring 14.90 ct · Colombia ×1.0 high estimate Estimate USD 776k – 1.02m USD 1,053,284$70,690 per carat $60,796per carat Lot 97 Bulgari emerald and diamond ring 10.89 ct · Colombia · Minor oil ×2.2 high estimate Estimate USD 179k – 299k USD 662,064$60,796 per carat $46,062per carat Lot 103 Cartier emerald and diamond necklace 5.39 ct · Colombia · No oil ×3.5 high estimate Estimate USD 48k – 72k USD 248,274$46,062 per carat $8,643per carat Lot 3 Emerald and diamond ring 17.41 ct · Colombia · Minor oil ×0.7 high estimate Estimate USD 155k – 215k USD 150,469$8,643 per carat $1,083,378price paid Lot 99 Bulgari emerald and diamond pendent brooch Colombia · Minor oil ×0.9 high estimate Estimate USD 717k – 1.19m USD 1,083,378 $421,314price paid Lot 98 Bulgari emerald and diamond earrings Colombia · Insignificant oil ×3.5 high estimate Estimate USD 96k – 119k USD 421,314 $127,899price paid Lot 24 Late 19th century emerald and diamond brooch/pendant Colombia · No oil ×1.8 high estimate Estimate USD 48k – 72k USD 127,899

Coloured diamonds 9 lots

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$2,036,264per carat Lot 19 Exceptional coloured diamond, diamond and ruby ballerina ring, mounted by Boucheron 6.24 ct · Fancy Deep Blue · VVS2 ×1.6 high estimate Estimate USD 5.37m – 7.76m USD 12,706,288$2,036,264 per carat $1,585,236per carat Lot 43 Rare Graff coloured diamond and diamond ring 3.68 ct · Fancy Vivid Blue · VVS2 ×1.3 high estimate Estimate USD 3.22m – 4.42m USD 5,833,667$1,585,236 per carat $164,897per carat Lot 58 JAR coloured diamond, coloured sapphire and diamond 'Bonnet' ring 0.73 ct · Fancy Vivid Yellowish Orange · SI2 ×1.6 high estimate Estimate USD 54k – 78k USD 120,375$164,897 per carat $159,791per carat Lot 82 Important coloured diamond and diamond ring 11.64 ct · Fancy Light Blue · VS2 ×0.9 high estimate Estimate USD 1.55m – 2.15m USD 1,859,967$159,791 per carat $72,361per carat Lot 32 Coloured diamond ring 7.07 ct · Fancy Vivid Yellow · VVS1 ×0.7 high estimate Estimate USD 502k – 717k USD 511,595$72,361 per carat $42,586per carat Lot 52 JAR diamond and coloured diamond ring 6.36 ct · I colour · VS1 ×1.1 high estimate Estimate USD 155k – 239k USD 270,845$42,586 per carat $38,708per carat Lot 100 Harry Winston coloured diamond and diamond ring 21.38 ct · Fancy Vivid Yellow · VS1 ×0.9 high estimate Estimate USD 717k – 955k USD 827,581$38,708 per carat $23,164per carat Lot 21 Unmounted coloured diamond 15.59 ct · Fancy Yellow · VVS2 ×1.2 high estimate Estimate USD 203k – 299k USD 361,126$23,164 per carat $11,567per carat Lot 77 Coloured diamond and diamond ring 15.61 ct · Fancy Yellow ×0.6 high estimate Estimate USD 179k – 299k USD 180,563$11,567 per carat

Colourless diamonds 13 lots

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$72,314per carat Lot 76 Diamond pendant 10.82 ct · D colour ×1.1 high estimate Estimate USD 502k – 717k USD 782,440$72,314 per carat $68,812per carat Lot 114 Reza diamond ring 20.10 ct · D colour · VVS1 ×0.8 high estimate Estimate USD 1.19m – 1.79m USD 1,383,122$68,812 per carat $59,396per carat Lot 69 Diamond ring 12.16 ct · D colour · VVS1 ×0.9 high estimate Estimate USD 537k – 776k USD 722,252$59,396 per carat $58,835per carat Lot 8 Unmounted diamond 10.23 ct · D colour ×0.8 high estimate Estimate USD 502k – 717k USD 601,877$58,835 per carat $56,440per carat Lot 18 Diamond ring 13.33 ct · D colour · VS2 ×1.3 high estimate Estimate USD 382k – 597k USD 752,346$56,440 per carat $54,055per carat Lot 91 Diamond pendant 15.31 ct · D colour · VVS2 ×1.4 high estimate Estimate USD 358k – 597k USD 827,581$54,055 per carat $49,408per carat Lot 85 Diamond ring 10.05 ct · D colour · VVS2 ×0.6 high estimate Estimate USD 537k – 776k USD 496,548$49,408 per carat $34,295per carat Lot 106 No reserve Bulgari diamond ring 7.02 ct · D colour ×0.8 high estimate Estimate USD 179k – 299k USD 240,751$34,295 per carat $752,346price paid Lot 68 Diamond earrings D colour · VVS2 ×1.1 high estimate Estimate USD 502k – 717k USD 752,346 $662,064price paid Lot 16 Mid-20th century diamond ear pendants D colour · VS1 ×1.1 high estimate Estimate USD 358k – 597k USD 662,064 $361,126price paid Lot 40 Diamond necklace T colour · SI1 ×1.2 high estimate Estimate USD 203k – 299k USD 361,126 $255,798price paid Lot 6 No reserve diamond earrings F colour · VS1 ×0.9 high estimate Estimate USD 179k – 299k USD 255,798 $180,563price paid Lot 79 Diamond earrings F colour · SI2 ×1.0 high estimate Estimate USD 107k – 179k USD 180,563

Pearls and cultured pearls 7 lots

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AllNatural pearls 6Pearls, type not stated 1

$993,097price paid Lot 111 Exceptional antique natural pearl and diamond earrings ×1.0 high estimate Estimate USD 597k – 955k USD 993,097 $285,891price paid Lot 87 Early 20th century natural pearl and diamond ring ×1.1 high estimate Estimate USD 155k – 263k USD 285,891 $195,610price paid Lot 38 Boucheron mid-20th century coloured natural pearl and diamond ring ×2.5 high estimate Estimate USD 54k – 78k USD 195,610 $195,610price paid Lot 17 Pair of natural pearl and diamond pendants ×2.7 high estimate Estimate USD 50k – 72k USD 195,610 $135,422price paid Lot 49 JAR coloured natural pearl, diamond and coloured diamond earclips ×0.9 high estimate Estimate USD 107k – 155k USD 135,422 $105,328price paid Lot 39 Marcus & co. Art Deco natural pearl and diamond necklace ×1.8 high estimate Estimate USD 42k – 60k USD 105,328 $51,160price paid Lot 2 Mid-20th century seed pearl, enamel and diamond sautoir, attributed to Jean Schlumberger ×1.3 high estimate Estimate USD 31k – 38k USD 51,160

Signed jewels 57 lots

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AllBoucheron 5Buccellati 1Bulgari 10Cartier 4David Webb 1Fabergé 2Graff 2Harry Winston 3JAR 23Marcus & Co. 1Michele della Valle 1Suzanne Belperron 1Van Cleef & Arpels 3

$2,036,264per carat Lot 19 Exceptional coloured diamond, diamond and ruby ballerina ring, mounted by Boucheron 6.24 ct · Fancy Deep Blue · VVS2 ×1.6 high estimate Estimate USD 5.37m – 7.76m USD 12,706,288$2,036,264 per carat $112,755per carat Lot 5 Sapphire and diamond ring, mounted by Boucheron 7.74 ct · Kashmir · No heat ×1.2 high estimate Estimate USD 597k – 717k USD 872,721$112,755 per carat $511,595price paid Lot 1 Boucheron multi-gem 'Tulipa' necklace and sapphire and diamond earrings ×1.4 high estimate Estimate USD 239k – 358k USD 511,595 $406,267price paid Lot 14 Boucheron emerald bracelet ×4.3 high estimate Estimate USD 72k – 96k USD 406,267 $195,610price paid Lot 38 Boucheron mid-20th century coloured natural pearl and diamond ring ×2.5 high estimate Estimate USD 54k – 78k USD 195,610 $127,899price paid Lot 7 Buccellati suite of diamond jewellery ×1.2 high estimate Estimate USD 72k – 107k USD 127,899 $1,083,378price paid Lot 99 Bulgari emerald and diamond pendent brooch Colombia · Minor oil ×0.9 high estimate Estimate USD 717k – 1.19m USD 1,083,378 $707,205price paid Lot 96 Exceptional Bulgari coloured diamond and diamond 'En tremblant' brooch ×1.3 high estimate Estimate USD 299k – 537k USD 707,205 $60,796per carat Lot 97 Bulgari emerald and diamond ring 10.89 ct · Colombia · Minor oil ×2.2 high estimate Estimate USD 179k – 299k USD 662,064$60,796 per carat $421,314price paid Lot 98 Bulgari emerald and diamond earrings Colombia · Insignificant oil ×3.5 high estimate Estimate USD 96k – 119k USD 421,314 $34,295per carat Lot 106 No reserve Bulgari diamond ring 7.02 ct · D colour ×0.8 high estimate Estimate USD 179k – 299k USD 240,751$34,295 per carat $210,657price paid Lot 95 Bulgari set of diamond 'En tremblant' jewellery ×1.5 high estimate Estimate USD 96k – 143k USD 210,657 $165,516price paid Lot 94 Bulgari mid-20th century diamond bracelet ×2.0 high estimate Estimate USD 60k – 84k USD 165,516 $120,375price paid Lot 93 Bulgari suite of turquoise, sapphire and diamond jewellery ×1.3 high estimate Estimate USD 72k – 96k USD 120,375 $105,328price paid Lot 92 Bulgari set of emerald, sapphire and diamond jewellery ×1.1 high estimate Estimate USD 60k – 96k USD 105,328 $105,328price paid Lot 9 Bulgari diamond bracelet ×1.5 high estimate Estimate USD 54k – 72k USD 105,328 $300,938price paid Lot 30 Cartier mid-20th century pair of diamond bracelets / necklace ×3.1 high estimate Estimate USD 72k – 96k USD 300,938 $285,891price paid Lot 37 Cartier diamond, onyx and emerald 'Panthère' bangle ×0.8 high estimate Estimate USD 239k – 358k USD 285,891 $46,062per carat Lot 103 Cartier emerald and diamond necklace 5.39 ct · Colombia · No oil ×3.5 high estimate Estimate USD 48k – 72k USD 248,274$46,062 per carat $195,610price paid Lot 22 Cartier early 20th century diamond pendant ×2.3 high estimate Estimate USD 60k – 84k USD 195,610 $57,178price paid Lot 13 David Webb rock crystal, ruby and diamond bangle ×1.0 high estimate Estimate USD 42k – 60k USD 57,178 $255,798price paid Lot 107 Fabergé late 19th century transformable diamond necklace ×0.9 high estimate Estimate USD 203k – 299k USD 255,798 $67,711price paid Lot 29 Fabergé early 20th century chalcedony and diamond cape clasp ×1.9 high estimate Estimate USD 24k – 36k USD 67,711 $1,585,236per carat Lot 43 Rare Graff coloured diamond and diamond ring 3.68 ct · Fancy Vivid Blue · VVS2 ×1.3 high estimate Estimate USD 3.22m – 4.42m USD 5,833,667$1,585,236 per carat $707,205price paid Lot 73 Graff suite of sapphire and diamond jewellery ×4.6 high estimate Estimate USD 107k – 155k USD 707,205 $131,854per carat Lot 113 Rare Harry Winston sapphire and diamond ring 9.70 ct · Kashmir · No heat ×1.8 high estimate Estimate USD 478k – 717k USD 1,278,988$131,854 per carat $38,708per carat Lot 100 Harry Winston coloured diamond and diamond ring 21.38 ct · Fancy Vivid Yellow · VS1 ×0.9 high estimate Estimate USD 717k – 955k USD 827,581$38,708 per carat $180,563price paid Lot 11 Harry Winston set of ruby and diamond jewellery ×1.3 high estimate Estimate USD 72k – 143k USD 180,563 $2,835,329price paid Lot 44 JAR diamond 'Apricot blossom' bangle ×4.3 high estimate Estimate USD 334k – 657k USD 2,835,329 $2,582,458price paid Lot 116 Extraordinary JAR diamond necklace ×3.1 high estimate Estimate USD 597k – 836k USD 2,582,458 $40,202per carat Lot 63 JAR sapphire and diamond ring 13.10 ct · No heat ×2.8 high estimate Estimate USD 131k – 191k USD 526,642$40,202 per carat $421,314price paid Lot 64 JAR multi-gem chain necklace ×1.1 high estimate Estimate USD 263k – 382k USD 421,314 $391,220price paid Lot 46 JAR multi-gem 'Pansy' earrings ×1.6 high estimate Estimate USD 155k – 239k USD 391,220 $42,869per carat Lot 60 JAR diamond and sapphire ring 7.02 ct · H colour · VVS2 ×1.3 high estimate Estimate USD 155k – 239k USD 300,938$42,869 per carat $300,938price paid Lot 59 JAR multi-gem earrings ×1.6 high estimate Estimate USD 131k – 191k USD 300,938 $10,091per carat Lot 61 JAR sapphire, coloured sapphire and diamond ring 28.33 ct · Not determinable · No heat ×1.5 high estimate Estimate USD 131k – 191k USD 285,891$10,091 per carat $42,586per carat Lot 52 JAR diamond and coloured diamond ring 6.36 ct · I colour · VS1 ×1.1 high estimate Estimate USD 155k – 239k USD 270,845$42,586 per carat $225,704price paid Lot 53 JAR diamond 'Caterpillar' necklace ×0.7 high estimate Estimate USD 203k – 322k USD 225,704 $225,704price paid Lot 55 JAR diamond, coloured sapphire and spinel 'Semainier' bracelet ×1.2 high estimate Estimate USD 131k – 191k USD 225,704 $225,704price paid Lot 51 JAR ruby and diamond 'Spiraling thread' earrings ×1.9 high estimate Estimate USD 78k – 119k USD 225,704 $225,704price paid Lot 57 JAR coloured diamond, sapphire and diamond 'Fleur de lys' earrings ×2.2 high estimate Estimate USD 66k – 102k USD 225,704 $210,657price paid Lot 54 JAR pair of ruby and diamond bracelets / necklace ×1.1 high estimate Estimate USD 131k – 191k USD 210,657 $210,657price paid Lot 115 JAR coral, pink opal and diamond sautoir ×1.4 high estimate Estimate USD 107k – 155k USD 210,657 $150,469price paid Lot 45 JAR spinel, amethyst and diamond 'Pansy' brooch ×1.9 high estimate Estimate USD 54k – 78k USD 150,469 $135,422price paid Lot 49 JAR coloured natural pearl, diamond and coloured diamond earclips ×0.9 high estimate Estimate USD 107k – 155k USD 135,422 $164,897per carat Lot 58 JAR coloured diamond, coloured sapphire and diamond 'Bonnet' ring 0.73 ct · Fancy Vivid Yellowish Orange · SI2 ×1.6 high estimate Estimate USD 54k – 78k USD 120,375$164,897 per carat $67,711price paid Lot 62 JAR amethyst, green beryl and diamond 'Cross' pendant ×0.9 high estimate Estimate USD 54k – 78k USD 67,711 $67,711price paid Lot 50 JAR diamond 'String' ring ×1.9 high estimate Estimate USD 20k – 36k USD 67,711 $60,188price paid Lot 56 JAR pair of ruby and diamond 'V-shaped' rings ×2.8 high estimate Estimate USD 14k – 21k USD 60,188 $28,589price paid Lot 47 JAR aluminium 'Geranium' earrings ×4.8 high estimate Estimate USD 4k – 6k USD 28,589 $21,066price paid Lot 48 JAR aluminium 'Geranium' earrings ×3.5 high estimate Estimate USD 4k – 6k USD 21,066 $105,328price paid Lot 39 Marcus & co. Art Deco natural pearl and diamond necklace ×1.8 high estimate Estimate USD 42k – 60k USD 105,328 $142,946price paid Lot 12 Michele della valle tourmaline and diamond necklace ×2.0 high estimate Estimate USD 54k – 72k USD 142,946 $93,291price paid Lot 15 Suzanne Belperron emerald and enamel 'Vague' bangle ×1.0 high estimate Estimate USD 72k – 96k USD 93,291 $210,657price paid Lot 33 Van Cleef & Arpels set of ruby and diamond jewellery ×1.5 high estimate Estimate USD 96k – 143k USD 210,657 $195,610price paid Lot 34 Van Cleef & Arpels group of coloured diamond and diamond flower jewellery ×2.5 high estimate Estimate USD 54k – 78k USD 195,610 $165,516price paid Lot 35 Van Cleef & Arpels sapphire and diamond 'Mystery set' clip-brooch ×1.4 high estimate Estimate USD 84k – 119k USD 165,516

Vintage 21 lots

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$2,293,461price paid Lot 41 Mid-20th century sapphire and diamond bracelet ×3.0 high estimate Estimate USD 537k – 776k USD 2,293,461 $993,097price paid Lot 111 Exceptional antique natural pearl and diamond earrings ×1.0 high estimate Estimate USD 597k – 955k USD 993,097 $662,064price paid Lot 16 Mid-20th century diamond ear pendants D colour · VS1 ×1.1 high estimate Estimate USD 358k – 597k USD 662,064 $421,314price paid Lot 27 Bolin early 20th century sapphire and diamond necklace ×1.2 high estimate Estimate USD 239k – 358k USD 421,314 $406,267price paid Lot 26 Antique emerald and diamond brooch / pendant ×1.9 high estimate Estimate USD 167k – 215k USD 406,267 $300,938price paid Lot 30 Cartier mid-20th century pair of diamond bracelets / necklace ×3.1 high estimate Estimate USD 72k – 96k USD 300,938 $285,891price paid Lot 87 Early 20th century natural pearl and diamond ring ×1.1 high estimate Estimate USD 155k – 263k USD 285,891 $255,798price paid Lot 107 Fabergé late 19th century transformable diamond necklace ×0.9 high estimate Estimate USD 203k – 299k USD 255,798 $26,480per carat Lot 23 Art Deco diamond clip brooch 9.66 ct · G colour · VS2 ×1.6 high estimate Estimate USD 119k – 155k USD 255,798$26,480 per carat $255,798price paid Lot 25 Antique sapphire and diamond brooch Ceylon · No heat ×2.1 high estimate Estimate USD 84k – 119k USD 255,798 $210,657price paid Lot 36 Mid-20th century diamond bracelet ×1.2 high estimate Estimate USD 119k – 179k USD 210,657 $195,610price paid Lot 22 Cartier early 20th century diamond pendant ×2.3 high estimate Estimate USD 60k – 84k USD 195,610 $195,610price paid Lot 38 Boucheron mid-20th century coloured natural pearl and diamond ring ×2.5 high estimate Estimate USD 54k – 78k USD 195,610 $30,296per carat Lot 109 Early 20th century sapphire and diamond brooch 5.96 ct · Kashmir · No heat ×1.0 high estimate Estimate USD 119k – 179k USD 180,563$30,296 per carat $62,479per carat Lot 108 Rare antique ruby, natural pearl and diamond ring 2.89 ct · Burma · No heat ×1.9 high estimate Estimate USD 72k – 96k USD 180,563$62,479 per carat $165,516price paid Lot 94 Bulgari mid-20th century diamond bracelet ×2.0 high estimate Estimate USD 60k – 84k USD 165,516 $127,899price paid Lot 28 Belle Époque sapphire and diamond brooch / pendant Ceylon · No heat ×1.5 high estimate Estimate USD 60k – 84k USD 127,899 $127,899price paid Lot 24 Late 19th century emerald and diamond brooch/pendant Colombia · No oil ×1.8 high estimate Estimate USD 48k – 72k USD 127,899 $105,328price paid Lot 39 Marcus & co. Art Deco natural pearl and diamond necklace ×1.8 high estimate Estimate USD 42k – 60k USD 105,328 $67,711price paid Lot 29 Fabergé early 20th century chalcedony and diamond cape clasp ×1.9 high estimate Estimate USD 24k – 36k USD 67,711 $51,160price paid Lot 2 Mid-20th century seed pearl, enamel and diamond sautoir, attributed to Jean Schlumberger ×1.3 high estimate Estimate USD 31k – 38k USD 51,160

Other jewels 11 lots

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$1,859,967price paid Lot 72 Important diamond necklace ×1.0 high estimate Estimate USD 1.19m – 1.79m USD 1,859,967 $662,064price paid Lot 83 Coloured diamond earstuds VVS2 ×0.9 high estimate Estimate USD 502k – 717k USD 662,064 $346,079price paid Lot 81 Dior, victoire de castellane set of coloured sapphire, garnet and diamond 'Roi soleil' jewellery ×2.9 high estimate Estimate USD 72k – 119k USD 346,079 $225,704price paid Lot 90 Suite of emerald and diamond jewellery ×0.8 high estimate Estimate USD 179k – 299k USD 225,704 $210,657price paid Lot 4 Multi-gem necklace, attributed to Harry Winston ×0.7 high estimate Estimate USD 179k – 299k USD 210,657 $188,087price paid Lot 80 Diamond necklace ×1.4 high estimate Estimate USD 84k – 131k USD 188,087 $120,375price paid Lot 67 Pederzani diamond bracelet ×1.7 high estimate Estimate USD 50k – 72k USD 120,375 $120,375price paid Lot 65 Pederzani ruby and diamond earclips ×2.0 high estimate Estimate USD 50k – 60k USD 120,375 $21,024per carat Lot 88 Unmounted diamond 5.01 ct · G colour · VS2 ×0.9 high estimate Estimate USD 84k – 119k USD 105,328$21,024 per carat $10,782per carat Lot 78 Diamond ring 6.28 ct · H colour · VS2 ×0.8 high estimate Estimate USD 48k – 84k USD 67,711$10,782 per carat $28,589price paid Lot 66 Emerald and diamond egyptian style pendant/brooch ×1.8 high estimate Estimate USD 11k – 16k USD 28,589

Prices are the prices paid, buyer’s premium included, as Christie’s publishes them; prices per carat and comparisons with the estimates use them too (Christie’s estimates do not include the premium). Prices in USD at the ECB rate of 14 May 2025. Photographs © Christie’s Images Ltd. 2025.