Precious Trade
At the hammer

Sales/Results·Sotheby's Geneva·13 May 2025·Live auction GE2502

High Jewelry featuring The Mediterranean Blue

$50.0m in total, buyer’s premium included

The mediterranean blue
Lot 602, The mediterranean blue. © Sotheby’s 2025

90 of 93 lots sold

The sale on sothebys.com ↗︎

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

The mediterranean blue$2,114,353per carat Lot 602 The mediterranean blue 10.03 ct · Fancy Vivid Blue · VS2 Estimate — USD 21,206,964$2,114,353 per carat Attractive fancy blue diamond pendent necklace, 4.05$279,259per carat Lot 573 Attractive fancy blue diamond pendent necklace, 4.05 4.05 ct · Fancy Blue · Internally Flawless ×0.7 high estimate Estimate USD 1.01m – 1.54m USD 1,130,999$279,259 per carat Attractive fancy light blue diamond ring, 5.83$245,729per carat Lot 596 Attractive fancy light blue diamond ring, 5.83 5.83 ct · Fancy Light Blue · Internally Flawless ×1.2 high estimate Estimate USD 891k – 1.19m USD 1,432,598$245,729 per carat Very fine and rare fancy vivid yellowish orange diamond, rock crystal and enamel ring, 'Havana', boodles$199,076per carat Lot 589 Very fine and rare fancy vivid yellowish orange diamond, rock crystal and enamel ring, 'Havana', boodles 3.03 ct · Fancy Vivid Yellowish Orange · I1 ×0.8 high estimate Estimate USD 475k – 712k USD 603,199$199,076 per carat Attractive ruby and diamond ring$54,033per carat Lot 534 Attractive ruby and diamond ring 6.14 ct · Burma · No heat ×0.6 high estimate Estimate USD 332k – 570k USD 331,760$54,033 per carat Very fine diamond ring$53,272per carat Lot 599 Very fine diamond ring 14.72 ct · D · VVS2 ×0.8 high estimate Estimate USD 570k – 997k USD 784,159$53,272 per carat Attractive ruby and diamond ring$45,439per carat Lot 584 Attractive ruby and diamond ring 10.62 ct · Burma · No heat ×0.9 high estimate Estimate USD 309k – 534k USD 482,559$45,439 per carat Very fine spinel ring, 10.91$41,466per carat Lot 512 Very fine spinel ring, 10.91 10.91 ct · Burma · No heat ×3.5 high estimate Estimate USD 83k – 131k USD 452,399$41,466 per carat Diamond ring$36,048per carat Lot 518 Diamond ring 5.02 ct · D · Internally Flawless ×1.0 high estimate Estimate USD 142k – 190k USD 180,960$36,048 per carat Emerald and diamond ring$33,833per carat Lot 548 Emerald and diamond ring 3.12 ct · Colombia · Minor oil ×1.3 high estimate Estimate USD 47k – 83k USD 105,560$33,833 per carat Fancy intense yellow diamond ring$32,494per carat Lot 530 Fancy intense yellow diamond ring 10.21 ct · Fancy Intense Yellow · Internally Flawless ×1.6 high estimate Estimate USD 107k – 214k USD 331,760$32,494 per carat Unmounted diamond$31,848per carat Lot 516 Unmounted diamond 9.47 ct · D · VVS2 ×0.8 high estimate Estimate USD 237k – 356k USD 301,600$31,848 per carat

Sapphires 14 lots

Unmounted sapphire$17,040per carat Lot 545 Unmounted sapphire 5.31 ct · Kashmir · No heat ×0.7 high estimate Estimate USD 77k – 131k USD 90,480$17,040 per carat Superb sapphire, ruby, emerald and diamond pendant/brooch, late 19th-century and later$814,319price paid Lot 554 Superb sapphire, ruby, emerald and diamond pendant/brooch, late 19th-century and later Kashmir · No heat ×1.4 high estimate Estimate USD 332k – 594k USD 814,319 Very fine sapphire ring, 7.67$24,576per carat Lot 513 Very fine sapphire ring, 7.67 7.67 ct · Burma · No heat ×1.4 high estimate Estimate USD 83k – 131k USD 188,500$24,576 per carat Sapphire and emerald ring. 'Abstraite', circa 1957$15,633per carat Lot 537 Sapphire and emerald ring. 'Abstraite', circa 1957 12.54 ct · Burma · No heat ×4.1 high estimate Estimate USD 36k – 47k USD 196,040$15,633 per carat Sapphire and diamond ring, 'Trombino'$12,361per carat Lot 510 Sapphire and diamond ring, 'Trombino' 6.71 ct · Burma · No heat ×0.9 high estimate Estimate USD 71k – 95k USD 82,940$12,361 per carat Sapphire and ruby ring$9,754per carat Lot 566 Sapphire and ruby ring 15.46 ct · Burma · No heat ×1.0 high estimate Estimate USD 107k – 154k USD 150,800$9,754 per carat Sapphire and ruby ring$8,233per carat Lot 568 Sapphire and ruby ring 10.99 ct · Burma · No heat ×0.7 high estimate Estimate USD 77k – 131k USD 90,480$8,233 per carat Sapphire and diamond pendant/brooch, 'The maharaja blue'$9,144per carat Lot 579 Sapphire and diamond pendant/brooch, 'The maharaja blue' 64.32 ct · Ceylon · No heat ×1.0 high estimate Estimate USD 309k – 570k USD 588,119$9,144 per carat Sapphire and diamond ring$8,077per carat Lot 520 Sapphire and diamond ring 18.67 ct · Ceylon · No heat ×0.8 high estimate Estimate USD 131k – 190k USD 150,800$8,077 per carat Sapphire and diamond ring$7,754per carat Lot 586 Sapphire and diamond ring 16.53 ct · Ceylon · No heat ×0.7 high estimate Estimate USD 119k – 178k USD 128,180$7,754 per carat Sapphire, ruby, emerald and diamond brooch, circa 1980 and later$7,720per carat Lot 563 Sapphire, ruby, emerald and diamond brooch, circa 1980 and later 14.65 ct · Ceylon · No heat ×1.7 high estimate Estimate USD 42k – 65k USD 113,100$7,720 per carat Impressive pair of sapphire and diamond earrings$482,559price paid Lot 571 Impressive pair of sapphire and diamond earrings Ceylon · No heat ×1.0 high estimate Estimate USD 261k – 475k USD 482,559 Attractive pink sapphire and diamond ring Lot 514 Attractive pink sapphire and diamond ring 9.45 ct · Ceylon · No heat Estimate USD 45k – 65k Not sold Sapphire and diamond brooch, 1960s$2,141per carat Lot 525 Sapphire and diamond brooch, 1960s 26.77 ct ×0.8 high estimate Estimate USD 53k – 71k USD 57,304$2,141 per carat

Rubies 3 lots

Burma

Attractive ruby and diamond ring$54,033per carat Lot 534 Attractive ruby and diamond ring 6.14 ct · Burma · No heat ×0.6 high estimate Estimate USD 332k – 570k USD 331,760$54,033 per carat Attractive ruby and diamond ring$45,439per carat Lot 584 Attractive ruby and diamond ring 10.62 ct · Burma · No heat ×0.9 high estimate Estimate USD 309k – 534k USD 482,559$45,439 per carat Unmounted ruby$20,787per carat Lot 564 Unmounted ruby 3.99 ct · Burma · No heat ×0.6 high estimate Estimate USD 65k – 131k USD 82,940$20,787 per carat

Emeralds 5 lots

Colombia

Emerald and diamond ring$33,833per carat Lot 548 Emerald and diamond ring 3.12 ct · Colombia · Minor oil ×1.3 high estimate Estimate USD 47k – 83k USD 105,560$33,833 per carat Important emerald and diamond ring, circa 1942$29,811per carat Lot 595 Important emerald and diamond ring, circa 1942 26.81 ct · Colombia · Minor oil ×1.3 high estimate Estimate USD 416k – 629k USD 799,239$29,811 per carat Emerald and diamond ring$13,478per carat Lot 575 Emerald and diamond ring 9.51 ct · Colombia · Minor oil ×0.8 high estimate Estimate USD 131k – 166k USD 128,180$13,478 per carat Emerald and diamond brooch$52,780price paid Lot 557 Emerald and diamond brooch Colombia · Minor oil ×1.1 high estimate Estimate USD 24k – 47k USD 52,780 Pair of emerald and diamond ear clips Lot 585 Pair of emerald and diamond ear clips Colombia · Minor oil Estimate USD 131k – 178k Not sold

Coloured diamonds 11 lots

The mediterranean blue$2,114,353per carat Lot 602 The mediterranean blue 10.03 ct · Fancy Vivid Blue · VS2 Estimate — USD 21,206,964$2,114,353 per carat Attractive fancy blue diamond pendent necklace, 4.05$279,259per carat Lot 573 Attractive fancy blue diamond pendent necklace, 4.05 4.05 ct · Fancy Blue · Internally Flawless ×0.7 high estimate Estimate USD 1.01m – 1.54m USD 1,130,999$279,259 per carat Attractive fancy light blue diamond ring, 5.83$245,729per carat Lot 596 Attractive fancy light blue diamond ring, 5.83 5.83 ct · Fancy Light Blue · Internally Flawless ×1.2 high estimate Estimate USD 891k – 1.19m USD 1,432,598$245,729 per carat Very fine and rare fancy vivid yellowish orange diamond, rock crystal and enamel ring, 'Havana', boodles$199,076per carat Lot 589 Very fine and rare fancy vivid yellowish orange diamond, rock crystal and enamel ring, 'Havana', boodles 3.03 ct · Fancy Vivid Yellowish Orange · I1 ×0.8 high estimate Estimate USD 475k – 712k USD 603,199$199,076 per carat Fancy intense yellow diamond ring$32,494per carat Lot 530 Fancy intense yellow diamond ring 10.21 ct · Fancy Intense Yellow · Internally Flawless ×1.6 high estimate Estimate USD 107k – 214k USD 331,760$32,494 per carat Fancy deep grayish yellowish green diamond ring$29,406per carat Lot 541 Fancy deep grayish yellowish green diamond ring 16.41 ct · Fancy Deep Grayish Yellowish · SI2 ×1.6 high estimate Estimate USD 226k – 309k USD 482,559$29,406 per carat Fancy intense yellow diamond ring,$22,231per carat Lot 519 Fancy intense yellow diamond ring, 16.28 ct · Fancy Intense Yellow · VVS2 ×1.0 high estimate Estimate USD 285k – 356k USD 361,920$22,231 per carat Fancy deep orange-brown diamond ring$15,941per carat Lot 529 Fancy deep orange-brown diamond ring 9.46 ct · Fancy Deep Orange-Brown · Internally Flawless ×2.1 high estimate Estimate USD 53k – 71k USD 150,800$15,941 per carat Impressive pair of fancy intense yellow diamond and diamond pendent earrings, 14.15$573,039price paid Lot 588 Impressive pair of fancy intense yellow diamond and diamond pendent earrings, 14.15 Fancy Intense Yellow · VS1 ×0.8 high estimate Estimate USD 534k – 736k USD 573,039 Fine diamond and coloured diamond pendant,$361,920price paid Lot 572 Fine diamond and coloured diamond pendant, D · VS2 ×1.0 high estimate Estimate USD 261k – 356k USD 361,920 Fancy vivid yellow diamond ring Lot 533 Fancy vivid yellow diamond ring 8.21 ct · Fancy Vivid Yellow · VS2 Estimate USD 226k – 356k Not sold

Colourless diamonds 9 lots

Very fine diamond ring$53,272per carat Lot 599 Very fine diamond ring 14.72 ct · D · VVS2 ×0.8 high estimate Estimate USD 570k – 997k USD 784,159$53,272 per carat Unmounted diamond$31,848per carat Lot 516 Unmounted diamond 9.47 ct · D · VVS2 ×0.8 high estimate Estimate USD 237k – 356k USD 301,600$31,848 per carat Diamond demi-parure, 'Star',$30,488per carat Lot 522 Diamond demi-parure, 'Star', 6.43 ct · F · Internally Flawless ×0.9 high estimate Estimate USD 154k – 214k USD 196,040$30,488 per carat Diamond demi-parure, 'Flower',$29,000per carat Lot 521 Diamond demi-parure, 'Flower', 6.24 ct · F · VS1 ×0.8 high estimate Estimate USD 154k – 214k USD 180,960$29,000 per carat Diamond ring, early 20th-century$13,257per carat Lot 560 Diamond ring, early 20th-century 18.20 ct · VS2 ×2.5 high estimate Estimate USD 65k – 95k USD 241,280$13,257 per carat Diamond ring$10,942per carat Lot 540 Diamond ring 15.16 ct ×1.9 high estimate Estimate USD 57k – 89k USD 165,880$10,942 per carat Fancy deep orange-brown diamond, azurmalachite and diamond pendant, 'The earth star'$5,135per carat Lot 532 Fancy deep orange-brown diamond, azurmalachite and diamond pendant, 'The earth star' 111.59 ct ×0.8 high estimate Estimate USD 534k – 736k USD 573,039$5,135 per carat Magnificent pair of unmounted diamonds, 23.88$3,825,803price paid Lot 597 Magnificent pair of unmounted diamonds, 23.88 D · Flawless ×0.8 high estimate Estimate USD 3.68m – 4.75m USD 3,825,803 Superb diamond necklace/brooch combination$1,281,798price paid Lot 601 Superb diamond necklace/brooch combination ×1.7 high estimate Estimate USD 416k – 736k USD 1,281,798

Pearls and cultured pearls 8 lots

Natural pearl and diamond necklace, 1950s$603,199price paid Lot 587 Natural pearl and diamond necklace, 1950s ×3.4 high estimate Estimate USD 119k – 178k USD 603,199 Pair of natural pearl and diamond earrings,$588,119price paid Lot 515 Pair of natural pearl and diamond earrings, ×3.3 high estimate Estimate USD 119k – 178k USD 588,119 Natural pearl, ruby and diamond devant-de-corsage, circa 1860 and later$482,559price paid Lot 552 Natural pearl, ruby and diamond devant-de-corsage, circa 1860 and later ×2.7 high estimate Estimate USD 119k – 178k USD 482,559 Attractive natural pearl, emerald and diamond devant-de-corsage, circa 1860$226,200price paid Lot 551 Attractive natural pearl, emerald and diamond devant-de-corsage, circa 1860 ×4.2 high estimate Estimate USD 33k – 53k USD 226,200 Natural pearl and diamond demi-parure$150,800price paid Lot 539 Natural pearl and diamond demi-parure ×0.8 high estimate Estimate USD 131k – 190k USD 150,800 Natural pearl and diamond necklace, late 1930s$113,100price paid Lot 562 Natural pearl and diamond necklace, late 1930s ×3.7 high estimate Estimate USD 21k – 31k USD 113,100 Pair of natural pearl and diamond pendent earrings, late 19th-century and later$87,464price paid Lot 561 Pair of natural pearl and diamond pendent earrings, late 19th-century and later ×2.5 high estimate Estimate USD 24k – 36k USD 87,464 Conch pearl and diamond tiara, early 20th-century,$98,020price paid Lot 550 Conch pearl and diamond tiara, early 20th-century, ×1.5 high estimate Estimate USD 45k – 65k USD 98,020

Signed jewels 42 lots

Fancy dark bluish gray diamond ring$5,245per carat Lot 524 Fancy dark bluish gray diamond ring 8.05 ct ×0.3 high estimate Estimate USD 83k – 154k USD 42,224$5,245 per carat Very fine and rare fancy vivid yellowish orange diamond, rock crystal and enamel ring, 'Havana', boodles$199,076per carat Lot 589 Very fine and rare fancy vivid yellowish orange diamond, rock crystal and enamel ring, 'Havana', boodles 3.03 ct · Fancy Vivid Yellowish Orange · I1 ×0.8 high estimate Estimate USD 475k – 712k USD 603,199$199,076 per carat Sapphire and diamond ring$708,759price paid Lot 507 Sapphire and diamond ring ×4.0 high estimate Estimate USD 119k – 178k USD 708,759 Diamond bangle, 'Serpenti',$407,159price paid Lot 581 Diamond bangle, 'Serpenti', ×2.1 high estimate Estimate USD 131k – 190k USD 407,159 Diamond necklace, 'Serpenti',$361,920price paid Lot 582 Diamond necklace, 'Serpenti', ×0.9 high estimate Estimate USD 261k – 392k USD 361,920 Gem set and diamond parure, 'Carré', 1980s$211,120price paid Lot 505 Gem set and diamond parure, 'Carré', 1980s ×2.2 high estimate Estimate USD 59k – 95k USD 211,120 Gem set and diamond demi-parure, 'Celtaura'$143,260price paid Lot 508 Gem set and diamond demi-parure, 'Celtaura' ×2.4 high estimate Estimate USD 36k – 59k USD 143,260 Sapphire and diamond ring, 'Trombino'$12,361per carat Lot 510 Sapphire and diamond ring, 'Trombino' 6.71 ct · Burma · No heat ×0.9 high estimate Estimate USD 71k – 95k USD 82,940$12,361 per carat Gem set and diamond bangle, 'Celtaura'$82,940price paid Lot 509 Gem set and diamond bangle, 'Celtaura' ×2.3 high estimate Estimate USD 24k – 36k USD 82,940 Ruby, emerald and diamond brooch, 1960s$75,400price paid Lot 506 Ruby, emerald and diamond brooch, 1960s ×0.6 high estimate Estimate USD 71k – 119k USD 75,400 Pair of diamond earrings, 'Serpenti',$48,256price paid Lot 580 Pair of diamond earrings, 'Serpenti', ×0.7 high estimate Estimate USD 45k – 65k USD 48,256 Attractive ruby and diamond ring$45,439per carat Lot 584 Attractive ruby and diamond ring 10.62 ct · Burma · No heat ×0.9 high estimate Estimate USD 309k – 534k USD 482,559$45,439 per carat Iconic lady'S onyx, emerald and diamond wristwatch, 'Panthère',$241,280price paid Lot 527 Iconic lady'S onyx, emerald and diamond wristwatch, 'Panthère', ×0.9 high estimate Estimate USD 154k – 261k USD 241,280 Onyx, emerald and diamond bangle, 'Panthère',$120,640price paid Lot 526 Onyx, emerald and diamond bangle, 'Panthère', ×1.1 high estimate Estimate USD 77k – 107k USD 120,640 Coral and and diamond bracelet, 1930s$99,528price paid Lot 503 Coral and and diamond bracelet, 1930s ×1.7 high estimate Estimate USD 36k – 59k USD 99,528 Diamond bracelet, probably monture Cartier$30,286per carat Lot 598 Diamond bracelet, probably monture Cartier 2.39 ct ×0.9 high estimate Estimate USD 53k – 83k USD 72,384$30,286 per carat Charming onyx and diamond brooch, circa 1950$60,320price paid Lot 543 Charming onyx and diamond brooch, circa 1950 ×2.0 high estimate Estimate USD 18k – 31k USD 60,320 Gold and diamond brooch, 'Grain de café', 1950s$52,780price paid Lot 501 Gold and diamond brooch, 'Grain de café', 1950s ×1.5 high estimate Estimate USD 24k – 36k USD 52,780 Pair of diamond brooches, 1930s$48,256price paid Lot 544 Pair of diamond brooches, 1930s ×1.6 high estimate Estimate USD 18k – 31k USD 48,256 Pair of gold and ruby brooches, circa 1940$24,128price paid Lot 502 Pair of gold and ruby brooches, circa 1940 ×0.8 high estimate Estimate USD 18k – 31k USD 24,128 Pair of lacquer, emerald and diamond cufflinks, 'Panthère',$22,620price paid Lot 523 Pair of lacquer, emerald and diamond cufflinks, 'Panthère', ×1.2 high estimate Estimate USD 13k – 19k USD 22,620 Unique pink sapphire and diamond demi-parure,$241,280price paid Lot 528 Unique pink sapphire and diamond demi-parure, ×1.1 high estimate Estimate USD 166k – 226k USD 241,280 Fancy intense yellow diamond ring,$22,231per carat Lot 519 Fancy intense yellow diamond ring, 16.28 ct · Fancy Intense Yellow · VVS2 ×1.0 high estimate Estimate USD 285k – 356k USD 361,920$22,231 per carat Fine diamond and coloured diamond pendant,$361,920price paid Lot 572 Fine diamond and coloured diamond pendant, D · VS2 ×1.0 high estimate Estimate USD 261k – 356k USD 361,920 Pair of diamond earrings, Harry Winston and a pair of fancy yellow diamond pendants$482,559price paid Lot 577 Pair of diamond earrings, Harry Winston and a pair of fancy yellow diamond pendants ×0.8 high estimate Estimate USD 416k – 629k USD 482,559 Diamond ring, JAR$165,880price paid Lot 570 Diamond ring, JAR ×0.6 high estimate Estimate USD 154k – 261k USD 165,880 Diamond demi-parure, 'Star',$30,488per carat Lot 522 Diamond demi-parure, 'Star', 6.43 ct · F · Internally Flawless ×0.9 high estimate Estimate USD 154k – 214k USD 196,040$30,488 per carat Diamond demi-parure, 'Flower',$29,000per carat Lot 521 Diamond demi-parure, 'Flower', 6.24 ct · F · VS1 ×0.8 high estimate Estimate USD 154k – 214k USD 180,960$29,000 per carat Very fine diamond ring$53,272per carat Lot 599 Very fine diamond ring 14.72 ct · D · VVS2 ×0.8 high estimate Estimate USD 570k – 997k USD 784,159$53,272 per carat Unique gem set and diamond necklace/brooch combination, circa 1935$211,120price paid Lot 538 Unique gem set and diamond necklace/brooch combination, circa 1935 ×0.7 high estimate Estimate USD 202k – 297k USD 211,120 Pair of sapphire, tsavorite garnet and diamond ear clips$45,240price paid Lot 567 Pair of sapphire, tsavorite garnet and diamond ear clips ×1.9 high estimate Estimate USD 18k – 24k USD 45,240 Fancy deep orange-brown diamond, azurmalachite and diamond pendant, 'The earth star'$5,135per carat Lot 532 Fancy deep orange-brown diamond, azurmalachite and diamond pendant, 'The earth star' 111.59 ct ×0.8 high estimate Estimate USD 534k – 736k USD 573,039$5,135 per carat Sapphire and emerald ring. 'Abstraite', circa 1957$15,633per carat Lot 537 Sapphire and emerald ring. 'Abstraite', circa 1957 12.54 ct · Burma · No heat ×4.1 high estimate Estimate USD 36k – 47k USD 196,040$15,633 per carat Emerald and sapphire bracelet, circa 1948$98,020price paid Lot 536 Emerald and sapphire bracelet, circa 1948 ×2.8 high estimate Estimate USD 24k – 36k USD 98,020 Pair of emerald and sapphire ear clips, circa 1957$98,020price paid Lot 535 Pair of emerald and sapphire ear clips, circa 1957 ×4.1 high estimate Estimate USD 18k – 24k USD 98,020 Superb diamond necklace/brooch combination$1,281,798price paid Lot 601 Superb diamond necklace/brooch combination ×1.7 high estimate Estimate USD 416k – 736k USD 1,281,798 Attractive pair of diamond pendent ear clips$874,639price paid Lot 600 Attractive pair of diamond pendent ear clips ×1.2 high estimate Estimate USD 534k – 736k USD 874,639 Important emerald and diamond ring, circa 1942$29,811per carat Lot 595 Important emerald and diamond ring, circa 1942 26.81 ct · Colombia · Minor oil ×1.3 high estimate Estimate USD 416k – 629k USD 799,239$29,811 per carat Gold and diamond sautoir and a belt buckle, 'Sèvres', circa 1975$196,040price paid Lot 504 Gold and diamond sautoir and a belt buckle, 'Sèvres', circa 1975 ×2.4 high estimate Estimate USD 59k – 83k USD 196,040 Emerald and diamond brooch, 1960s$90,480price paid Lot 558 Emerald and diamond brooch, 1960s ×1.7 high estimate Estimate USD 38k – 53k USD 90,480 Diamond brooch, 'Trèfle', circa 1964$67,860price paid Lot 559 Diamond brooch, 'Trèfle', circa 1964 ×1.3 high estimate Estimate USD 33k – 53k USD 67,860 Sapphire and diamond brooch, 1960s$2,141per carat Lot 525 Sapphire and diamond brooch, 1960s 26.77 ct ×0.8 high estimate Estimate USD 53k – 71k USD 57,304$2,141 per carat

Vintage 15 lots

Important emerald and diamond ring, circa 1942$29,811per carat Lot 595 Important emerald and diamond ring, circa 1942 26.81 ct · Colombia · Minor oil ×1.3 high estimate Estimate USD 416k – 629k USD 799,239$29,811 per carat Natural pearl and diamond necklace, 1950s$603,199price paid Lot 587 Natural pearl and diamond necklace, 1950s ×3.4 high estimate Estimate USD 119k – 178k USD 603,199 Impressive sapphire and diamond necklace, circa 1900$527,799price paid Lot 553 Impressive sapphire and diamond necklace, circa 1900 ×3.4 high estimate Estimate USD 107k – 154k USD 527,799 Unique gem set and diamond necklace/brooch combination, circa 1935$211,120price paid Lot 538 Unique gem set and diamond necklace/brooch combination, circa 1935 ×0.7 high estimate Estimate USD 202k – 297k USD 211,120 Sapphire and emerald ring. 'Abstraite', circa 1957$15,633per carat Lot 537 Sapphire and emerald ring. 'Abstraite', circa 1957 12.54 ct · Burma · No heat ×4.1 high estimate Estimate USD 36k – 47k USD 196,040$15,633 per carat Diamond bracelet/choker combination, circa 1900$113,100price paid Lot 549 Diamond bracelet/choker combination, circa 1900 ×1.4 high estimate Estimate USD 59k – 83k USD 113,100 Natural pearl and diamond necklace, late 1930s$113,100price paid Lot 562 Natural pearl and diamond necklace, late 1930s ×3.7 high estimate Estimate USD 21k – 31k USD 113,100 Coral and and diamond bracelet, 1930s$99,528price paid Lot 503 Coral and and diamond bracelet, 1930s ×1.7 high estimate Estimate USD 36k – 59k USD 99,528 Emerald and sapphire bracelet, circa 1948$98,020price paid Lot 536 Emerald and sapphire bracelet, circa 1948 ×2.8 high estimate Estimate USD 24k – 36k USD 98,020 Pair of emerald and sapphire ear clips, circa 1957$98,020price paid Lot 535 Pair of emerald and sapphire ear clips, circa 1957 ×4.1 high estimate Estimate USD 18k – 24k USD 98,020 Diamond bracelet, circa 1930$75,400price paid Lot 547 Diamond bracelet, circa 1930 ×2.9 high estimate Estimate USD 15k – 26k USD 75,400 Charming onyx and diamond brooch, circa 1950$60,320price paid Lot 543 Charming onyx and diamond brooch, circa 1950 ×2.0 high estimate Estimate USD 18k – 31k USD 60,320 Gold and diamond brooch, 'Grain de café', 1950s$52,780price paid Lot 501 Gold and diamond brooch, 'Grain de café', 1950s ×1.5 high estimate Estimate USD 24k – 36k USD 52,780 Pair of diamond brooches, 1930s$48,256price paid Lot 544 Pair of diamond brooches, 1930s ×1.6 high estimate Estimate USD 18k – 31k USD 48,256 Pair of gold and ruby brooches, circa 1940$24,128price paid Lot 502 Pair of gold and ruby brooches, circa 1940 ×0.8 high estimate Estimate USD 18k – 31k USD 24,128

Other jewels 9 lots

Pair of diamond pendent earrings, 5.90$361,920price paid Lot 576 Pair of diamond pendent earrings, 5.90 ×0.7 high estimate Estimate USD 309k – 534k USD 361,920 Diamond rivière necklace$331,760price paid Lot 574 Diamond rivière necklace ×1.0 high estimate Estimate USD 226k – 332k USD 331,760 Emerald and diamond necklace$241,280price paid Lot 546 Emerald and diamond necklace ×3.4 high estimate Estimate USD 47k – 71k USD 241,280 Coloured diamond and diamond bangle$196,040price paid Lot 531 Coloured diamond and diamond bangle ×2.1 high estimate Estimate USD 77k – 95k USD 196,040 Diamond ring$26,456per carat Lot 565 Diamond ring 5.70 ct · D · VVS2 ×1.0 high estimate Estimate USD 107k – 154k USD 150,800$26,456 per carat Diamond ring$28,595per carat Lot 583 Diamond ring 5.01 ct · D · Flawless ×0.4 high estimate Estimate USD 214k – 356k USD 143,260$28,595 per carat Gem set and diamond necklace$98,020price paid Lot 569 Gem set and diamond necklace ×0.7 high estimate Estimate USD 95k – 142k USD 98,020 Pair of diamond earrings$19,038per carat Lot 556 Pair of diamond earrings 3.01 ct · I · VS1 ×0.8 high estimate Estimate USD 53k – 71k USD 57,304$19,038 per carat Spinel ring, 6.24$9,183per carat Lot 511 Spinel ring, 6.24 6.24 ct · No heat ×2.2 high estimate Estimate USD 19k – 26k USD 57,304$9,183 per carat

Prices are the prices paid, buyer’s premium included, as Sotheby’s publishes them; prices per carat and comparisons with the estimates use them too (Sotheby’s estimates do not include the premium). Prices in USD at the ECB rate of 13 May 2025. Photographs © Sotheby’s 2025.

Stones seen before

3 lots of this sale have been offered at auction before: the same stone, found by its laboratory report and weight. Resales

Source: Sotheby's lot pages and results, live sale GE2502, read lot by lot by Precious Trade. Prices realised, buyer’s premium included.