The Hong Kong Jewels Auction

$5.43m in total, buyer’s premium included

67 of 95 lots sold

The sale on phillips.com ↗︎

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

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$56,080per carat Lot 545 Pair of diamond ear pendants, 'Ribbon collection', Cindy Chao 2.01 ct · E · VVS2 ×0.7 high estimate Estimate USD 84k – 154k USD 112,720$56,080 per carat $41,731per carat Lot 566 Emerald and diamond ring 7.15 ct · Colombia · No oil ×1.0 high estimate Estimate USD 231k – 308k USD 298,377$41,731 per carat $35,753per carat Lot 560 Diamond ring, Harry Winston 5.10 ct · D · VS1 ×0.7 high estimate Estimate USD 141k – 270k USD 182,342$35,753 per carat $24,766per carat Lot 572 Diamond ring, Graff 5.02 ct · F · VS2 ×1.1 high estimate Estimate USD 80k – 116k USD 124,324$24,766 per carat $23,347per carat Lot 544 Fancy intense yellow diamond and diamond diamond ring, 'Ribbon collection', Cindy Chao 2.13 ct · Fancy Intense Yellow · VS2 ×0.6 high estimate Estimate USD 33k – 77k USD 49,730$23,347 per carat $20,983per carat Lot 557 Fancy vivid yellow diamond and diamond ring 5.53 ct · Fancy Vivid Yellow · VS1 ×0.8 high estimate Estimate USD 103k – 154k USD 116,036$20,983 per carat $14,158per carat Lot 514 Emerald and diamond ring 5.62 ct · Zambia · No oil ×1.7 high estimate Estimate USD 33k – 46k USD 79,567$14,158 per carat $12,570per carat Lot 510 Ruby and diamond ring 2.11 ct · Burma · No heat ×0.6 high estimate Estimate USD 28k – 41k USD 26,522$12,570 per carat $10,309per carat Lot 556 Sapphire and diamond ring 6.11 ct · Ceylon · No heat ×1.2 high estimate Estimate USD 39k – 51k USD 62,991$10,309 per carat $9,481per carat Lot 573 Red spinel and diamond ring 10.49 ct · Burma · No oil ×0.6 high estimate Estimate USD 100k – 154k USD 99,459$9,481 per carat $7,699per carat Lot 576 Spinel and diamond ring 6.89 ct · Tanzania · No heat ×1.0 high estimate Estimate USD 36k – 51k USD 53,045$7,699 per carat $5,182per carat Lot 558 Red spinel ring 38.39 ct · Tanzania (Gübelin) / Burma (GRS) · No heat ×0.9 high estimate Estimate USD 103k – 231k USD 198,918$5,182 per carat

Sapphires 7 lots

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AllCeylon 3Burma 4

$10,309per carat Lot 556 Sapphire and diamond ring 6.11 ct · Ceylon · No heat ×1.2 high estimate Estimate USD 39k – 51k USD 62,991$10,309 per carat $4,376per carat Lot 561 Sapphire and diamond ring 9.85 ct · Ceylon · No heat ×0.7 high estimate Estimate USD 39k – 64k USD 43,099$4,376 per carat $3,416per carat Lot 582 Sapphire and diamond ring 16.50 ct · Ceylon · No heat ×1.3 high estimate Estimate USD 33k – 45k USD 56,360$3,416 per carat $215,495price paid Lot 543 Sapphire and diamond ring, Cartier 20.70 ct · Burma · No heat ×0.9 high estimate Estimate USD 167k – 244k USD 215,495 Lot 539 Sapphire and diamond ring 13.18 ct · Burma · No heat Estimate USD 180k – 308k Not sold Lot 540 Pair of sapphire and diamond earrings Burma · No heat Estimate USD 167k – 231k Not sold Lot 594 Sapphire and diamond ring 9.64 ct · Burma · No heat Estimate USD 180k – 231k Not sold

Rubies 11 lots

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AllBurma 8Origin not reported 3

$12,570per carat Lot 510 Ruby and diamond ring 2.11 ct · Burma · No heat ×0.6 high estimate Estimate USD 28k – 41k USD 26,522$12,570 per carat $281,801price paid Lot 542 Pair of ruby and diamond ear pendants Burma · No heat ×1.1 high estimate Estimate USD 206k – 257k USD 281,801 $46,414price paid Lot 513 Pair of ruby and diamond earrings Burma · No heat ×1.0 high estimate Estimate USD 36k – 49k USD 46,414 $33,153price paid Lot 563 Ruby and diamond ring 5.25 ct · Burma · No heat ×0.2 high estimate Estimate USD 77k – 154k USD 33,153 Lot 592 Ruby and diamond ring 5.71 ct · Burma · No heat Estimate USD 193k – 308k Not sold Lot 591 Pair of ruby and diamond ear pendants Burma · No heat Estimate USD 193k – 257k Not sold Lot 541 Ruby and diamond ring 4.29 ct · Burma · No heat Estimate USD 129k – 206k Not sold Lot 583 Ruby and diamond ring 3.04 ct · Burma · No heat Estimate USD 36k – 49k Not sold Lot 517 Pair of ruby and diamond ear pendants Estimate USD 84k – 109k Not sold Lot 580 Pair of ruby and diamond earrings Estimate USD 46k – 64k Not sold Lot 520 Ruby and diamond ring 3.01 ct Estimate USD 36k – 45k Not sold

Emeralds 6 lots

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AllColombia 4Zambia 1Origin not reported 1

$41,731per carat Lot 566 Emerald and diamond ring 7.15 ct · Colombia · No oil ×1.0 high estimate Estimate USD 231k – 308k USD 298,377$41,731 per carat Lot 538 Emerald and diamond ring Colombia · No oil Estimate USD 206k – 334k Not sold Lot 559 Emerald and diamond ring 27.99 ct · Colombia · Minor oil Estimate USD 193k – 283k Not sold Lot 515 Emerald and diamond ring 5.12 ct · Colombia · Minor oil Estimate USD 59k – 72k Not sold $14,158per carat Lot 514 Emerald and diamond ring 5.62 ct · Zambia · No oil ×1.7 high estimate Estimate USD 33k – 46k USD 79,567$14,158 per carat $9,946price paid Lot 504 Emerald and diamond pendent necklace, gianmaria Buccellati ×1.1 high estimate Estimate USD 5k – 9k USD 9,946

Coloured diamonds 5 lots

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$23,347per carat Lot 544 Fancy intense yellow diamond and diamond diamond ring, 'Ribbon collection', Cindy Chao 2.13 ct · Fancy Intense Yellow · VS2 ×0.6 high estimate Estimate USD 33k – 77k USD 49,730$23,347 per carat $20,983per carat Lot 557 Fancy vivid yellow diamond and diamond ring 5.53 ct · Fancy Vivid Yellow · VS1 ×0.8 high estimate Estimate USD 103k – 154k USD 116,036$20,983 per carat $4,480per carat Lot 585 Fancy light brown-yellow diamond and onyx ring 5.55 ct · Fancy Light Brown-Yellow · I1 ×1.0 high estimate Estimate USD 13k – 26k USD 24,865$4,480 per carat $53,045price paid Lot 571 Pair of fancy intense purplish pink diamond and diamond earrings Fancy Intense Purplish Pink · SI1 ×0.8 high estimate Estimate USD 41k – 67k USD 53,045 Lot 574 Fancy vivid yellow diamond and diamond ring 10.05 ct · Fancy Vivid Yellow · I1 Estimate USD 193k – 321k Not sold

Pearls and cultured pearls 6 lots

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AllNatural pearls 1Cultured pearls 1Pearls, type not stated 4

$232,071price paid Lot 595 Natural pearl necklace ×1.5 high estimate Estimate USD 103k – 154k USD 232,071 $69,621price paid Lot 565 Cultured pearl and diamond necklace, 'Limelight mediterranean garden', Piaget ×1.4 high estimate Estimate USD 31k – 51k USD 69,621 $36,468price paid Lot 564 Conch pearl, diamond and pink sapphire necklace ×0.7 high estimate Estimate USD 36k – 49k USD 36,468 $12,432price paid Lot 505 Mother-of-pearl necklace and bracelet, 'Vintage alhambra', Van Cleef & Arpels ×1.0 high estimate Estimate USD 6k – 13k USD 12,432 Lot 522 Conch pearl and diamond pendent necklace Estimate USD 36k – 49k Not sold Lot 523 Conch pearl and diamond ring Estimate USD 33k – 46k Not sold

Signed jewels 29 lots

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AllAlexander Laut 1Bulgari 2Cartier 9Cindy Chao 3Gianmaria Buccellati 1Graff 2Harry Winston 3Mikimoto 1Piaget 2Schlumberger for Tiffany & Co. 1Van Cleef & Arpels 4

$848per carat Lot 535 Spinel and diamond ring, alexander laut 25.40 ct · Tanzania · No heat ×0.7 high estimate Estimate USD 21k – 31k USD 21,549$848 per carat $26,522price paid Lot 587 Tanzanite and diamond ring, Bulgari ×1.0 high estimate Estimate USD 15k – 26k USD 26,522 Lot 555 Diamond bracelet, Bulgari Estimate USD 90k – 116k Not sold $215,495price paid Lot 543 Sapphire and diamond ring, Cartier 20.70 ct · Burma · No heat ×0.9 high estimate Estimate USD 167k – 244k USD 215,495 $69,621price paid Lot 536 Diamond, enamel and emerald wristwatch, 'Le cirque animalier de Cartier', limited edition of 60 pieces ×0.9 high estimate Estimate USD 41k – 77k USD 69,621 $62,991price paid Lot 584 Diamond bracelet watch, 'Baignoire', ref. 8057912, Cartier ×2.0 high estimate Estimate USD 19k – 31k USD 62,991 $24,865price paid Lot 534 Enamel and diamond wristwatch, 'Ronde louis Cartier panthère fragmentation d'Or', limited edition of 30 pieces ×0.8 high estimate Estimate USD 15k – 31k USD 24,865 $16,577price paid Lot 502 Diamond, emerald and onyx pendent necklace, 'Panthère de Cartier' ×0.9 high estimate Estimate USD 10k – 18k USD 16,577 $10,775price paid Lot 533 Tri-coloured gold bangle, 'Trinity', Cartier ×0.8 high estimate Estimate USD 6k – 13k USD 10,775 $6,631price paid Lot 501 Pair of diamond ear clips, 'Berlingot', Cartier ×0.6 high estimate Estimate USD 5k – 10k USD 6,631 $5,802price paid Lot 503 Yellow gold bangle, and pink gold and diamond ring, 'Juste un clou', Cartier ×0.6 high estimate Estimate USD 5k – 10k USD 5,802 Lot 589 Art Deco diamond bracelet watch, circa 1929, Cartier Estimate USD 154k – 283k Not sold $56,080per carat Lot 545 Pair of diamond ear pendants, 'Ribbon collection', Cindy Chao 2.01 ct · E · VVS2 ×0.7 high estimate Estimate USD 84k – 154k USD 112,720$56,080 per carat $112,720price paid Lot 546 Diamond bangle, 'Ribbon collection', Cindy Chao ×0.7 high estimate Estimate USD 84k – 154k USD 112,720 $23,347per carat Lot 544 Fancy intense yellow diamond and diamond diamond ring, 'Ribbon collection', Cindy Chao 2.13 ct · Fancy Intense Yellow · VS2 ×0.6 high estimate Estimate USD 33k – 77k USD 49,730$23,347 per carat $9,946price paid Lot 504 Emerald and diamond pendent necklace, gianmaria Buccellati ×1.1 high estimate Estimate USD 5k – 9k USD 9,946 $24,766per carat Lot 572 Diamond ring, Graff 5.02 ct · F · VS2 ×1.1 high estimate Estimate USD 80k – 116k USD 124,324$24,766 per carat $26,522price paid Lot 562 Pair of ruby and diamond earrings, 'Bombé', Graff ×0.8 high estimate Estimate USD 24k – 33k USD 26,522 $35,753per carat Lot 560 Diamond ring, Harry Winston 5.10 ct · D · VS1 ×0.7 high estimate Estimate USD 141k – 270k USD 182,342$35,753 per carat $79,567price paid Lot 588 Pair of diamond ear clips, Harry Winston ×0.9 high estimate Estimate USD 75k – 87k USD 79,567 $69,621price paid Lot 554 Diamond necklace, Harry Winston ×1.1 high estimate Estimate USD 49k – 64k USD 69,621 $39,784price paid Lot 506 Group of jewellery, Mikimoto ×3.1 high estimate Estimate USD 8k – 13k USD 39,784 $69,621price paid Lot 565 Cultured pearl and diamond necklace, 'Limelight mediterranean garden', Piaget ×1.4 high estimate Estimate USD 31k – 51k USD 69,621 $8,288price paid Lot 508 Agate and diamond ring/ pendant, 'Rose', Piaget ×1.0 high estimate Estimate USD 5k – 8k USD 8,288 $33,153price paid Lot 586 Diamond bracelet, 'Hands', schlumberger for Tiffany & Co. ×0.9 high estimate Estimate USD 26k – 39k USD 33,153 $54,702price paid Lot 581 Diamond brooch, Van Cleef & Arpels ×1.2 high estimate Estimate USD 33k – 46k USD 54,702 $26,522price paid Lot 507 Agate and diamond brooch, 'Rose de noël', Van Cleef & Arpels ×1.3 high estimate Estimate USD 10k – 21k USD 26,522 $12,432price paid Lot 505 Mother-of-pearl necklace and bracelet, 'Vintage alhambra', Van Cleef & Arpels ×1.0 high estimate Estimate USD 6k – 13k USD 12,432 Lot 575 Diamond, onyx and emerald brooch, circa 1980, Van Cleef & Arpels Estimate USD 71k – 90k Not sold

Vintage 2 lots

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$10,775price paid Lot 521 Art Deco diamond bracelet ×1.0 high estimate Estimate USD 8k – 10k USD 10,775 Lot 589 Art Deco diamond bracelet watch, circa 1929, Cartier Estimate USD 154k – 283k Not sold

Other jewels 32 lots

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$406,124price paid Lot 567 Emerald and diamond bracelet ×0.8 high estimate Estimate USD 411k – 514k USD 406,124 $281,801price paid Lot 568 Ruby and diamond necklace Burma · No heat ×0.5 high estimate Estimate USD 334k – 514k USD 281,801 $281,801price paid Lot 593 Ruby and diamond bracelet Burma · No heat ×1.0 high estimate Estimate USD 218k – 283k USD 281,801 $265,224price paid Lot 553 Jadeite and diamond ring ×0.9 high estimate Estimate USD 231k – 308k USD 265,224 $198,918price paid Lot 529 Jadeite, diamond and sapphire brooch ×1.1 high estimate Estimate USD 122k – 180k USD 198,918 $129,297price paid Lot 552 Pair of jadeite and diamond earrings ×0.9 high estimate Estimate USD 100k – 141k USD 129,297 $99,459price paid Lot 551 Lavender jadeite bead, ruby and diamond demi-parure ×0.4 high estimate Estimate USD 90k – 231k USD 99,459 $82,883price paid Lot 577 Alexandrite chrysoberyl and diamond ring ×0.8 high estimate Estimate USD 77k – 103k USD 82,883 $79,567price paid Lot 527 Jadetite and diamond demi-parure ×0.8 high estimate Estimate USD 75k – 103k USD 79,567 $66,306price paid Lot 570 Diamond and ruby brooch ×0.8 high estimate Estimate USD 33k – 84k USD 66,306 $2,801per carat Lot 537 Paraíba-type tourmaline and diamond ring 16.57 ct · Mozambique · Heated ×0.7 high estimate Estimate USD 45k – 71k USD 46,414$2,801 per carat $39,784price paid Lot 548 Jadeite and diamond ring ×0.8 high estimate Estimate USD 39k – 51k USD 39,784 $36,468price paid Lot 512 Ruby, emerald and diamond brooch ×0.9 high estimate Estimate USD 28k – 39k USD 36,468 $34,811price paid Lot 509 Pair of star sapphire and diamond ear clips, mounted by Harry Winston ×1.5 high estimate Estimate USD 13k – 23k USD 34,811 $33,153price paid Lot 528 Pair of lavender jadeite and diamond earrings ×1.2 high estimate Estimate USD 19k – 28k USD 33,153 $29,838price paid Lot 526 Lavender jadeite bangle ×0.6 high estimate Estimate USD 36k – 49k USD 29,838 $29,838price paid Lot 531 Coloured diamond and diamond bracelet ×1.1 high estimate Estimate USD 23k – 28k USD 29,838 $16,577price paid Lot 525 Lavender jadeite hoop pendent necklace ×0.9 high estimate Estimate USD 13k – 19k USD 16,577 $11,604price paid Lot 524 Lavender jadeite, jadeite and diamond pendant ×0.8 high estimate Estimate USD 9k – 15k USD 11,604 $9,946price paid Lot 511 Pair of gem set and diamond ear pendants ×1.0 high estimate Estimate USD 8k – 10k USD 9,946 $9,117price paid Lot 549 Jadeite and diamond pendant ×0.9 high estimate Estimate USD 6k – 10k USD 9,117 $6,631price paid Lot 550 Jadeite and diamond pendant ×0.9 high estimate Estimate USD 5k – 8k USD 6,631 $5,802price paid Lot 532 Pair of fancy yellow diamond and diamond ear pendants ×0.5 high estimate Estimate USD 8k – 13k USD 5,802 Lot 590 Ruby and diamond necklace Burma · No heat Estimate USD 251k – 379k Not sold Lot 519 Alexandrite chrysoberyl and diamond ring Estimate USD 71k – 96k Not sold Lot 516 Diamond necklace Estimate USD 75k – 90k Not sold Lot 547 Jadeite and diamond pendent necklace Estimate USD 49k – 77k Not sold Lot 518 Paraíba tourmaline and diamond ring 2.07 ct · Brazil Estimate USD 45k – 58k Not sold Lot 569 Pair of ruby and diamond ear pendants Estimate USD 21k – 39k Not sold Lot 579 Red spinel and diamond bracelet Estimate USD 33k – 39k Not sold Lot 578 Cat'S eye alexandrite chrysoberyl, alexandrite chrysoberyl and diamond ring Estimate USD 13k – 23k Not sold Lot 530 Peridot and diamond ring Estimate USD 8k – 12k Not sold

Prices are the prices paid, buyer’s premium included, as Phillips publishes them; prices per carat and comparisons with the estimates use them too (Phillips estimates do not include the premium). Prices in USD at the ECB rate of 30 September 2025. Photographs © Phillips 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

Lot 514 · $79,567

Emerald and diamond ring

5.62 ct · Gübelin 21081367

1. Mar 2022Christie’s Hong Kong online · lot 65est. $7,668–10,224$28,985

Lot 535 · $21,549

Spinel and diamond ring, alexander laut

25.47 ct · Tanzania · CDC 1906293

1. Oct 2023Phillips Hong Kong · lot 532est. $20,432–30,648$21,083

Lot 539

Sapphire and diamond ring

13.18 ct · Burma · Gübelin 24101012

1. Mar 2026Phillips Hong Kong · lot 556est. $127,600–229,680$246,906