6 stories on The Cultural Signal
Bonhams sold the Hope Spinel, a 50.13-carat faceted gemstone, for a record $30,000 per carat at its Fine Jewellery sale in London on September 24, 2015. The previous world record for a faceted spinel was $16,000 per carat, set in 2013.
Bonhams will offer a Cartier Belle Époque seed pearl and diamond sautoir from the personal collection of opera singer Dame Nellie Melba (1861-1931) at its Exceptional Jewels sale in London on June 11, 2026.
Bonhams presents its Exceptional Jewels sale in London on 11 June 2026, featuring six single-owner collections. Leading the auction is a Boucheron diamond bandeau tiara from 1924, estimated at £200,000–300,000. The tiara, unseen since its commission, features a 3.60-carat diamond.
Bonhams presented its Exceptional Jewels, London sale on June 11, featuring an outstanding selection of period and antique jewellery from six notable single-owner collections.
Bonhams presented its Fine Jewellery, London sale on 8 July, with a David Morris cultured pearl and diamond necklace achieving £40,960 against a £25,000-35,000 estimate. A natural pearl necklace with diamond clasp sold for £39,680, more than tripling its £7,000-10,000 estimate.
Bonhams held its Fine Jewellery London auction on March 25, 2026. The 273-lot sale was 87% sold by lot and 98% by value. The top lot, a Cartier diamond 'C de Cartier' necklace, achieved £40,960 against a pre-sale estimate of £18,000-25,000.
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