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Bonhams Paris Auction Features 81.17-Carat Tourmaline Necklace

Bonhams Paris Fine Jewellery Sale Features 81.17-Carat Paraiba Tourmaline Necklace Bonhams is offering an 81.17-carat Paraiba tourmaline necklace by Kat Florence to lead its upcoming fine jewelry auction in Paris on October 29, carrying an upper estimate of…

The Kat Florence Paraiba tourmaline and diamond necklace at Bonhams image

Bonhams Paris Fine Jewellery Sale Features 81.17-Carat Paraiba Tourmaline Necklace

Bonhams is offering an 81.17-carat Paraiba tourmaline necklace by Kat Florence to lead its upcoming fine jewelry auction in Paris on October 29, carrying an upper estimate of EUR 80,000 ($89,469). The pendant showcases a cushion-cut neon-blue stone set on an openwork mount accented with brilliant-cut diamonds.

Top Auction Lots and Estimated Valuations

The Paris auction catalogue encompasses more than 180 lots, bringing together pieces from historical houses including Cartier, Chaumet, and Buccellati alongside a broad assortment of colored gemstones. The leading lots feature significant sapphire and diamond configurations:

  • Chaumet Sapphire Ring: Estimated between EUR 45,000 and EUR 65,000 ($50,325 to $72,692), this ring centers on a step-cut 13.70-carat Sri Lankan sapphire framed by eight step-cut diamonds.
  • Cartier Sapphire Ring: Estimated between EUR 40,000 and EUR 60,000 ($44,734 to $67,101), the piece features an oval-cut 11.50-carat Madagascar sapphire positioned between two pear-cut diamonds.
  • Princess-Cut Diamond and Onyx Ring: Estimated between EUR 35,000 and EUR 55,000 ($39,143 to $61,513), this ring stars a princess-cut diamond inside a geometric onyx surround with matching shoulder details.
  • D-Color Diamond Ring: Estimated between EUR 40,000 and EUR 50,000 ($44,734 to $55,921), this mounting highlights an emerald-cut 3.05-carat diamond graded D color with internally flawless clarity.

Auction Schedule and Exhibition Details

The Fine Jewellery sale takes place on October 29 in Paris. Bonhams will display the complete collection of over 180 lots to prospective buyers ahead of the live bidding session, highlighting rubies and emeralds alongside the catalog’s anchor sapphire and tourmaline pieces.

Collector Questions Regarding the Paris Jewelry Auction

What is the most expensive piece in the Bonhams Paris auction?

The top-estimated lot is the Kat Florence necklace featuring an 81.17-carat Paraiba tourmaline, which holds an upper estimate of EUR 80,000 ($89,469).

Which jewelry houses are represented in the 180-lot sale?

The catalogue includes vintage and contemporary pieces from prominent makers such as Cartier, Chaumet, and Buccellati.

When does the Bonhams Fine Jewellery sale take place?

The live auction event is scheduled for October 29 in Paris.

REVIEW | Bonhams' Paris Auction 2026
About the author: Anika Shah - Technology

MSc in Computer Science, senior reporter. Anika focuses on AI ethics, cybersecurity, and emerging hardware—frequently moderating panels at CES and Web Summit. “Anika Shah decodes tech breakthroughs and startup disruption shaping tomorrow’s digital landscape.”