The Bulgari Pink Diamond Ring: A 24-Carat Highlight At Christie’s Geneva

A diamond that remained within the same family for more than seven decades has become the centrepiece of one of Geneva’s most closely watched jewellery sales this season. The Bulgari Pink, an extraordinary 24-carat Fancy Intense Pink diamond ring, achieved CHF 12,086,000 (approximately US$14.8 million) at Christie’s Magnificent Jewels auction on November 10, 2026. Set against a pre-sale estimate of CHF 10–15 million, the result brought an exceptional piece of jewellery history into the international auction spotlight.

The emerald-cut diamond was acquired in India during the 1950s by the consignor’s great-grandparents, according to family history. The uncut stone was subsequently entrusted to Bulgari in Rome, where it was transformed into the ring seen today. The jewel had never previously appeared at auction and remained in private ownership for more than 70 years before making its public debut.

Its appeal extends beyond its impressive weight. Graded Fancy Intense Pink and classified as a Type IIa diamond, the stone belongs to a category that accounts for fewer than two per cent of gem-quality diamonds. Its emerald cut gives the vivid pink centre stone a defined architectural presence, while tapered baguette-cut diamonds and a platinum setting complete the composition. The association with India’s celebrated Golconda diamond-producing region adds another layer to its provenance and appeal.

Artistry Across Eras

While the Bulgari diamond ring commanded attention, the Christie’s Geneva jewellery auction brought together creations that reflected markedly different approaches to jewellery design. Among the notable names represented were René Lalique, Cartier, Bhagat, JAR and Van Cleef & Arpels.

A circa-1900 Art Nouveau pendant by René Lalique offered a striking departure from conventional gemstone-led jewellery. Crafted in pink, purple and green moulded glass, violet enamel, plique-à-jour enamel and 18-karat yellow gold, the piece demonstrated Lalique’s ability to treat jewellery as an extension of decorative art. A matching necklace and ring set from the same artistic period, featuring glass, enamel and diamonds, further highlighted his fascination with the female form and natural motifs.

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Cartier brought a sculptural interpretation of floral jewellery to the selection through its Jacinthe ring. Pink and purple cabochon sapphires formed the centre of the design, surrounded by diamond-set petals in 18-karat white gold.

Stones With Stories

Indian jewellery craftsmanship also found representation through a pair of diamond bangles by Mumbai-based house Bhagat. Set in platinum with baguette-cut and round diamonds, the creations reflected the label’s architectural approach and emphasis on delicate settings.

The auction selection also included a 23.72-carat Kashmir sapphire and diamond ring, estimated at CHF 1.25–2 million before the sale. Its cushion-shaped blue sapphire was complemented by baguette-cut diamonds in platinum. Another notable creation was a 1960s Van Cleef & Arpels clip-brooch featuring a 43.94-carat Ceylon sapphire surrounded by concentric rows of diamonds.

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A pair of JAR earrings offered a more experimental expression of colour and texture, combining agate and onyx cameos with garnets and diamonds in an elaborate setting.

The Bulgari Pink may have commanded the evening’s attention, but the other creations offered an equally compelling glimpse into the world of exceptional jewellery. Each piece reflected a distinct design philosophy, whether through Lalique’s artistic experimentation, Cartier’s sculptural forms or Bhagat’s considered craftsmanship. Their presence at Geneva underscored how fine jewellery brings together artistic vision, rare materials and the enduring appeal of objects made to be treasured across generations.