London Jewels

$1.65m in total, buyer’s premium included

74 of 120 lots sold

The sale on bonhams.com ↗︎

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

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$38,850per carat Lot 408 A diamond pendant necklace, by Graff 1.01 ct · I · VS2 ×0.9 high estimate Estimate USD 31k – 44k USD 39,238$38,850 per carat $20,910per carat Lot 407 A diamond cluster ring, by Graff 3.15 ct · J · IF ×1.1 high estimate Estimate USD 50k – 63k USD 65,866$20,910 per carat $20,487per carat Lot 422 A diamond single-stone ring, mounted by Cartier 5.05 ct · D · VVS2 ×1.4 high estimate Estimate USD 50k – 75k USD 103,459$20,487 per carat $20,239per carat Lot 396 A sapphire and diamond 'Pavilion' ring, by Graff 1.01 ct · F · VS1 ×1.1 high estimate Estimate USD 13k – 19k USD 20,441$20,239 per carat $7,238per carat Lot 419 A fancy-coloured single-stone diamond ring 15.16 ct · Fancy Deep Brown-Yellow · VS2 ×0.7 high estimate Estimate USD 100k – 150k USD 109,725$7,238 per carat $5,716per carat Lot 362 A diamond single-stone ring, mounted by Van Cleef & Arpels 3.85 ct ×1.0 high estimate Estimate USD 18k – 23k USD 22,008$5,716 per carat $5,420per carat Lot 352 A diamond single-stone ring 7.24 ct · M · VS1 ×1.3 high estimate Estimate USD 28k – 31k USD 39,238$5,420 per carat $4,638per carat Lot 321 An emerald and diamond ring, 2.55 ct · Colombia · Minor oil ×1.2 high estimate Estimate USD 8k – 10k USD 11,826$4,638 per carat $4,393per carat Lot 330 An emerald and diamond ring 3.94 ct · Colombia · Minor oil ×1.2 high estimate Estimate USD 10k – 15k USD 17,308$4,393 per carat $3,643per carat Lot 361 A diamond single-stone ring 7.76 ct ×1.1 high estimate Estimate USD 19k – 25k USD 28,273$3,643 per carat $2,360per carat Lot 384 A sapphire and diamond ring 17.29 ct ×0.6 high estimate Estimate USD 44k – 69k USD 40,804$2,360 per carat $1,588per carat Lot 373 An emerald and diamond ring 16.82 ct · Colombia · Minor oil ×0.7 high estimate Estimate USD 25k – 38k USD 26,707$1,588 per carat

Sapphires 3 lots

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AllCeylon 1Origin not reported 2

$1,105per carat Lot 346 A sapphire and diamond ring 18.50 ct · Ceylon · No heat ×0.8 high estimate Estimate USD 19k – 25k USD 20,441$1,105 per carat $2,360per carat Lot 384 A sapphire and diamond ring 17.29 ct ×0.6 high estimate Estimate USD 44k – 69k USD 40,804$2,360 per carat Lot 345 A sapphire and diamond pendant 7.71 ct Estimate USD 8k – 10k Not sold

Rubies 3 lots

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AllBurma 2Origin not reported 1

$22,008price paid Lot 333 Pair of ruby and diamond pendent earrings Burma ×0.9 high estimate Estimate USD 19k – 25k USD 22,008 Lot 406 A ruby and diamond dress ring 8.09 ct · Burma · No heat Estimate USD 50k – 75k Not sold $13,393price paid Lot 327 A ruby and diamond dress ring 15.56 ct ×0.9 high estimate Estimate USD 10k – 15k USD 13,393

Emeralds 7 lots

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AllColombia 6Origin not reported 1

$4,638per carat Lot 321 An emerald and diamond ring, 2.55 ct · Colombia · Minor oil ×1.2 high estimate Estimate USD 8k – 10k USD 11,826$4,638 per carat $4,393per carat Lot 330 An emerald and diamond ring 3.94 ct · Colombia · Minor oil ×1.2 high estimate Estimate USD 10k – 15k USD 17,308$4,393 per carat $1,588per carat Lot 373 An emerald and diamond ring 16.82 ct · Colombia · Minor oil ×0.7 high estimate Estimate USD 25k – 38k USD 26,707$1,588 per carat Lot 387 An emerald and diamond pendant 17.34 ct · Colombia · Minor oil Estimate USD 69k – 81k Not sold Lot 382 An emerald and diamond ring 10.82 ct · Colombia · Minor oil Estimate USD 38k – 50k Not sold Lot 366 An emerald and diamond ring 7.30 ct · Colombia · Minor oil Estimate USD 25k – 38k Not sold $23,574price paid Lot 378 An emerald ring 6.10 ct ×1.6 high estimate Estimate USD 10k – 15k USD 23,574

Coloured diamonds 2 lots

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$7,238per carat Lot 419 A fancy-coloured single-stone diamond ring 15.16 ct · Fancy Deep Brown-Yellow · VS2 ×0.7 high estimate Estimate USD 100k – 150k USD 109,725$7,238 per carat Lot 413 A fancy-coloured diamond ring, by Graff 7.06 ct Estimate USD 88k – 100k Not sold

Colourless diamonds 1 lot

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$72,132price paid Lot 349 A diamond three-stone ring, ×1.3 high estimate Estimate USD 44k – 56k USD 72,132

Pearls and cultured pearls 10 lots

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AllNatural pearls 4Cultured pearls 3Pearls, type not stated 3

$18,875price paid Lot 344 Art Deco natural pearl, sapphire and diamond brooch, by Lacloches freres, ×0.8 high estimate Estimate USD 15k – 23k USD 18,875 $15,742price paid Lot 405 A single-row natural pearl necklace with diamond-set clasp, ×1.6 high estimate Estimate USD 8k – 10k USD 15,742 $14,176price paid Lot 340 A natural pearl necklace with ruby and diamond clasp, ×0.8 high estimate Estimate USD 13k – 19k USD 14,176 Lot 322 A natural pearl and diamond tassel necklace, Estimate USD 19k – 25k Not sold $11,826price paid Lot 363 A cultured pearl and diamond collar, by repossi ×0.9 high estimate Estimate USD 9k – 13k USD 11,826 $7,910price paid Lot 376 A cultured pearl, coral and onyx sautoir, by garrard, ×0.9 high estimate Estimate USD 6k – 9k USD 7,910 Lot 360 Pair of cultured pearl and diamond earclips, by Cartier Estimate USD 11k – 13k Not sold $12,609price paid Lot 409 Art Deco rock crystal, enamel, pearl and diamond brooch, by boivin, ×1.0 high estimate Estimate USD 10k – 13k USD 12,609 Lot 313 A seed pearl, sapphire and enamel necklace, by carlo giuliano, Estimate USD 19k – 25k Not sold Lot 303 Pair of pearl and diamond pendent earrings, probably by Buccellati, Estimate USD 5k – 8k Not sold

Signed jewels 42 lots

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AllBoucheron 7Buccellati 2Bulgari 2Cartier 7Chaumet 1Graff 14JAR 1Lacloche 1Patek Philippe 1René Boivin 3Suzanne Belperron 1Van Cleef & Arpels 2

$14,176price paid Lot 358 A lapis lazuli bracelet, by Boucheron, ×0.8 high estimate Estimate USD 13k – 19k USD 14,176 $8,693price paid Lot 377 Pair of diamond bracelets, by Boucheron, (2) ×0.9 high estimate Estimate USD 8k – 10k USD 8,693 $7,597price paid Lot 356 A ruby and diamond dress ring, by Boucheron, ×1.0 high estimate Estimate USD 5k – 8k USD 7,597 $6,344price paid Lot 380 A gold, diamond and sapphire bracelet, by Boucheron, ×0.8 high estimate Estimate USD 5k – 8k USD 6,344 Lot 418 A diamond necklace/bracelet combination, by Boucheron, Estimate USD 157k – 232k Not sold Lot 359 A gold and diamond bracelet, by Boucheron, Estimate USD 15k – 23k Not sold Lot 381 A necklace and bracelet suite, by Boucheron, (2) Estimate USD 13k – 19k Not sold $25,140price paid Lot 393 Pair of emerald and diamond pendent earrings, by Buccellati ×1.1 high estimate Estimate USD 15k – 23k USD 25,140 Lot 303 Pair of pearl and diamond pendent earrings, probably by Buccellati, Estimate USD 5k – 8k Not sold $20,441price paid Lot 397 A diamond 'Astrale' necklace and bracelet suite, by Bulgari ×1.1 high estimate Estimate USD 15k – 19k USD 20,441 $20,441price paid Lot 394 A coin necklace, by Bulgari, ×2.7 high estimate Estimate USD 5k – 8k USD 20,441 $20,487per carat Lot 422 A diamond single-stone ring, mounted by Cartier 5.05 ct · D · VVS2 ×1.4 high estimate Estimate USD 50k – 75k USD 103,459$20,487 per carat $54,901price paid Lot 385 A diamond 'Elephant' necklace, by Cartier, ×0.7 high estimate Estimate USD 50k – 75k USD 54,901 $43,937price paid Lot 389 A diamond watch, tank francaise, by Cartier ×1.2 high estimate Estimate USD 31k – 38k USD 43,937 $14,959price paid Lot 354 A diamond 'Himalia' bracelet and ring suite, by Cartier (2) ×1.2 high estimate Estimate USD 9k – 13k USD 14,959 $6,344price paid Lot 318 A diamond-set pocket watch, by Cartier, ×1.7 high estimate Estimate USD 3k – 4k USD 6,344 $3,994price paid Lot 316 A gold and sapphire cigarillo cutter pendant, by Cartier, ×0.9 high estimate Estimate USD 3k – 4k USD 3,994 Lot 360 Pair of cultured pearl and diamond earclips, by Cartier Estimate USD 11k – 13k Not sold Lot 342 Art Deco diamond lapel watch, by Chaumet, Estimate USD 13k – 15k Not sold $20,910per carat Lot 407 A diamond cluster ring, by Graff 3.15 ct · J · IF ×1.1 high estimate Estimate USD 50k – 63k USD 65,866$20,910 per carat $45,503price paid Lot 353 Pair of diamond chandelier earrings, by Graff ×1.0 high estimate Estimate USD 35k – 44k USD 45,503 $38,850per carat Lot 408 A diamond pendant necklace, by Graff 1.01 ct · I · VS2 ×0.9 high estimate Estimate USD 31k – 44k USD 39,238$38,850 per carat $39,238price paid Lot 395 Pair of ruby and diamond 'Butterfly motif' hoop earrings, by Graff ×1.3 high estimate Estimate USD 23k – 31k USD 39,238 $39,238price paid Lot 390 A diamond and sapphire pendant necklace, by Graff ×1.7 high estimate Estimate USD 15k – 23k USD 39,238 $37,671price paid Lot 388 Pair of sapphire and diamond pendent earrings, by Graff ×1.0 high estimate Estimate USD 25k – 38k USD 37,671 $22,008price paid Lot 325 Pair of diamond 'Snake' pendent earrings, by Graff ×1.2 high estimate Estimate USD 13k – 19k USD 22,008 $20,239per carat Lot 396 A sapphire and diamond 'Pavilion' ring, by Graff 1.01 ct · F · VS1 ×1.1 high estimate Estimate USD 13k – 19k USD 20,441$20,239 per carat Lot 417 Pair of diamond cluster earrings, by Graff 3.01 ct Estimate USD 113k – 138k Not sold Lot 413 A fancy-coloured diamond ring, by Graff 7.06 ct Estimate USD 88k – 100k Not sold Lot 415 A ruby and diamond strap bracelet, by Graff Estimate USD 81k – 88k Not sold Lot 414 A diamond 'Infinity' bracelet, by Graff Estimate USD 69k – 81k Not sold Lot 351 A diamond and mother-of-pearl "snowfall" wristwatch, by Graff Estimate USD 50k – 56k Not sold Lot 328 Pair of emerald and diamond 'Double flower carissa' earrings, by Graff Estimate USD 25k – 38k Not sold $10,260price paid Lot 323 Pair of limited edition ruby zoisite 'Fan' earclips, by JAR ×1.4 high estimate Estimate USD 5k – 8k USD 10,260 $18,875price paid Lot 344 Art Deco natural pearl, sapphire and diamond brooch, by Lacloches freres, ×0.8 high estimate Estimate USD 15k – 23k USD 18,875 Lot 357 A sapphire and diamond flower brooch, by patek philippe, Estimate USD 5k – 6k Not sold $12,609price paid Lot 409 Art Deco rock crystal, enamel, pearl and diamond brooch, by boivin, ×1.0 high estimate Estimate USD 10k – 13k USD 12,609 Lot 410 A gold and diamond brooch, by juliette moutard for rene boivin, Estimate USD 15k – 19k Not sold Lot 392 A citrine "dahlia" clip brooch, designed by juliette montard for boivin, Estimate USD 8k – 10k Not sold Lot 402 A diamond clip brooch, by belperron, Estimate USD 23k – 31k Not sold $5,716per carat Lot 362 A diamond single-stone ring, mounted by Van Cleef & Arpels 3.85 ct ×1.0 high estimate Estimate USD 18k – 23k USD 22,008$5,716 per carat $6,344price paid Lot 412 A rock crystal 'Scintillante' miniature travel clock, by Van Cleef & Arpels, ×0.8 high estimate Estimate USD 5k – 8k USD 6,344

Vintage 18 lots

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$28,273price paid Lot 305 A 19th century sapphire and diamond cluster brooch ×2.8 high estimate Estimate USD 8k – 10k USD 28,273 $20,441price paid Lot 306 Late 19th century diamond necklace ×1.4 high estimate Estimate USD 10k – 15k USD 20,441 $18,875price paid Lot 344 Art Deco natural pearl, sapphire and diamond brooch, by Lacloches freres, ×0.8 high estimate Estimate USD 15k – 23k USD 18,875 $18,875price paid Lot 403 Art Deco diamond bracelet, ×0.8 high estimate Estimate USD 15k – 23k USD 18,875 $18,875price paid Lot 320 Art Deco diamond and green paste brooch, ×2.2 high estimate Estimate USD 6k – 9k USD 18,875 $17,308price paid Lot 404 A diamond bracelet, circa 1930 ×2.3 high estimate Estimate USD 5k – 8k USD 17,308 $15,742price paid Lot 310 A 19th century gold and gem-set agnus dei reliquary pendant ×0.8 high estimate Estimate USD 13k – 19k USD 15,742 $12,609price paid Lot 304 A 19th century diamond rivière necklace ×0.7 high estimate Estimate USD 13k – 19k USD 12,609 $12,609price paid Lot 409 Art Deco rock crystal, enamel, pearl and diamond brooch, by boivin, ×1.0 high estimate Estimate USD 10k – 13k USD 12,609 $9,477price paid Lot 307 Two late 19th century gem-set falcon stickpins (2) ×0.9 high estimate Estimate USD 8k – 10k USD 9,477 $8,693price paid Lot 317 Art Deco diamond and onyx bracelet, ×0.9 high estimate Estimate USD 8k – 10k USD 8,693 $7,910price paid Lot 335 Pair of diamond earrings, circa 1950 ×0.9 high estimate Estimate USD 6k – 9k USD 7,910 $3,195price paid Lot 302 Art Deco rock crystal and diamond brooch, ×0.5 high estimate Estimate USD 4k – 6k USD 3,195 Lot 421 Pair of Art Deco diamond bracelets, Estimate USD 75k – 100k Not sold Lot 411 Art Deco emerald and diamond bracelet, Estimate USD 63k – 88k Not sold Lot 341 Belle epoque amethyst and diamond pendent brooch, Estimate USD 10k – 15k Not sold Lot 342 Art Deco diamond lapel watch, by Chaumet, Estimate USD 13k – 15k Not sold Lot 315 Art Deco silver, enamel and diamond cigarette case, Estimate USD 5k – 8k Not sold

Other jewels 40 lots

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$39,238price paid Lot 400 A sapphire and diamond brooch, by jean parmentier, ×1.0 high estimate Estimate USD 31k – 38k USD 39,238 $36,105price paid Lot 337 A diamond rivière necklace ×1.0 high estimate Estimate USD 25k – 38k USD 36,105 $25,924price paid Lot 350 A sapphire and diamond swag necklace ×0.7 high estimate Estimate USD 25k – 38k USD 25,924 $24,357price paid Lot 312 A diamond cluster ring, ×3.2 high estimate Estimate USD 5k – 8k USD 24,357 $22,791price paid Lot 329 A diamond necklace, ×1.2 high estimate Estimate USD 13k – 19k USD 22,791 $17,308price paid Lot 375 An emerald and diamond ring ×0.9 high estimate Estimate USD 13k – 19k USD 17,308 $17,308price paid Lot 399 A sapphire and diamond cluster ring ×1.7 high estimate Estimate USD 8k – 10k USD 17,308 $15,742price paid Lot 374 Pair of diamond earstuds ×1.0 high estimate Estimate USD 13k – 15k USD 15,742 $12,609price paid Lot 367 A diamond pendant necklace and earring suite, by john donald, (2) ×0.8 high estimate Estimate USD 10k – 15k USD 12,609 $11,826price paid Lot 398 Pair of diamond clip brooches, ×0.9 high estimate Estimate USD 9k – 13k USD 11,826 $9,477price paid Lot 319 A diamond bow brooch, ×0.9 high estimate Estimate USD 8k – 10k USD 9,477 $9,477price paid Lot 368 A gold and diamond fancy-link bracelet and earclip suite, by david thomas, (2) ×0.9 high estimate Estimate USD 8k – 10k USD 9,477 $8,693price paid Lot 334 A ruby and diamond dress ring, ×1.4 high estimate Estimate USD 4k – 6k USD 8,693 $7,910price paid Lot 336 Pair of pink sapphire and tourmaline diamond earrings, by margherita burgener ×0.9 high estimate Estimate USD 6k – 9k USD 7,910 $7,597price paid Lot 371 A gold and synthetic emerald crystal ring, by grima, ×1.2 high estimate Estimate USD 4k – 6k USD 7,597 $7,127price paid Lot 372 A fancy-link bracelet, by georges lenfant, ×0.8 high estimate Estimate USD 6k – 9k USD 7,127 $7,127price paid Lot 301 Pair of diamond earclips, ×0.9 high estimate Estimate USD 5k – 8k USD 7,127 $6,657price paid Lot 364 A gold and diamond watch/bracelet, by kutchinsky ×0.9 high estimate Estimate USD 5k – 8k USD 6,657 $6,344price paid Lot 347 An emerald and diamond ring ×0.8 high estimate Estimate USD 5k – 8k USD 6,344 $4,777price paid Lot 383 A pink tourmaline and diamond cocktail ring, ×0.5 high estimate Estimate USD 8k – 10k USD 4,777 $3,994price paid Lot 326 An amethyst, chalcedony and diamond necklace, by margherita burgener ×0.8 high estimate Estimate USD 4k – 5k USD 3,994 Lot 420 A diamond pendant/necklace, Estimate USD 175k – 251k Not sold Lot 314 Important sapphire and diamond ring Estimate USD 132k – 157k Not sold Lot 416 A diamond and tourmalinated rock crystal dress ring 9.12 ct · J · VS2 Estimate USD 63k – 88k Not sold Lot 379 A diamond single-stone ring, 8.84 ct · N · VVS2 Estimate USD 50k – 63k Not sold Lot 365 A diamond single-stone ring 8.83 ct Estimate USD 44k – 56k Not sold Lot 348 A diamond single-stone ring 5.73 ct Estimate USD 38k – 50k Not sold Lot 401 A turquoise and diamond festoon necklace, mounted by faraone, Estimate USD 25k – 38k Not sold Lot 331 A diamond wristwatch, Estimate USD 19k – 25k Not sold Lot 332 A diamond bracelet, by andré vassort, Estimate USD 19k – 25k Not sold Lot 311 A diamond and pearl mistletoe brooch, Estimate USD 18k – 23k Not sold Lot 309 An emerald cameo and diamond pendant and pair of earrings, Estimate USD 14k – 19k Not sold Lot 343 An emerald and diamond brooch, Estimate USD 13k – 19k Not sold Lot 355 A ruby and sappire bangle, Estimate USD 13k – 19k Not sold Lot 386 An emerald and diamond necklace Estimate USD 13k – 19k Not sold Lot 391 A labradorite and diamond bird brooch, Estimate USD 13k – 19k Not sold Lot 370 An aquamarine and diamond brooch, by grima, Estimate USD 5k – 8k Not sold Lot 339 Pair of sapphire and diamond earrings, by margherita burgener Estimate USD 6k – 7k Not sold Lot 369 A gold and diamond brooch, by david thomas, Estimate USD 4k – 5k Not sold Lot 338 A sapphire and diamond ring, by margherita burgener Estimate USD 3k – 4k Not sold

Prices are the prices paid, buyer’s premium included, as Bonhams publishes them; prices per carat and comparisons with the estimates use them too (Bonhams estimates do not include the premium). Prices in USD at the ECB rate of 14 July 2020. Photographs © Bonhams 2020.

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 352 · $39,238

A diamond single-stone ring

7.24 ct · M · HRD 180000178798

1. Apr 2019Bonhams London · lot 30est. $52,028–78,042Unsold
2. Sept 2019Bonhams London · lot 79est. $37,446–49,928Unsold

Lot 373 · $26,707

An emerald and diamond ring

16.82 ct · Colombia · Gübelin 18040040

1. Apr 2019Bonhams London · lot 126est. $32,518–45,525Unsold
2. Jun 2022Phillips Hong Kong · lot 540est. $61,152–86,632Unsold
3. Nov 2022Phillips Hong Kong · lot 552est. $38,400–51,200$54,835

Lot 406

A ruby and diamond dress ring

8.09 ct · Burma · SSEF 112354

1. Nov 2020Bonhams London · lot 79est. $45,972–52,540$57,794