THOMAS BONIFACE FONTANA et Cie Necklace in 18K yellow gold 750‰, composed of column link chains, adorned with black enameled motifs, in its center stars set with rose-cut diamonds pampille black enameled ferrets. Ratchet clasp, the box adorned with a dahlia motif set with a rose-cut diamond. Length: 38.50 cm Gross weight: 36 g (Minor enamel chips) In a velvet and satin presentation case, signed T. Fontana & Cie Palais Royal 93 & 94 près la rotonde, Paris. Worn case. The necklace is not hallmarked, but we know of similar necklaces made by Thomas Boniface Fontana and his nephews around 1861-1871, when they were associated. "Dictionnaire des joailliers, bijoutiers et orfèvres en France de 1850 à nos jours", edited by Remi VERLET. Edition Gallimard- L'École des arts Joailliers, 2022, pages 903 and 904.

Composed of several subsidiaries, the Drouot Group is a major player in the art market. Hôtel Drouot, located in the heart of Paris, has been the world's largest public auction center since 1852. 15 salerooms are available to more than 70 auction houses. The emulation generated by an annual offer of 230,000 artworks from 21 major specialities - from Antiquity to street art - attracts some 3,000 visitors every day. The Group's digital platform, Drouot.com, offers digital sales - Live auctions (live broadcasting and participation in auctions), Online-only auctions (dematerialised auctions) and Buy Now sales (sales of lots at fixed prices). Nearly 2 million items are offered annually by 600 auction houses. Auction news is reported every week in La Gazette Drouot, the leading weekly magazine for the art market and culture published by Auctionspress.