PIASA Auctions is delighted to announce its upcoming online only auction dedicated to Jewellery and Watches, which will take place from 17 to 29 June 2026.
Featuring historic pieces, exceptional gemstones and iconic brands, this sale, organised by Véronique Tajan and her team, once again establishes itself as an unmissable event for collectors and discerning connoisseurs.
Discover a selection of our favourites:
A historic rediscovery: Cartier’s Chinese-inspired Art Deco vanity set (1928)
One of the highlights of this auction is undoubtedly the presentation of a Chinese-inspired Art Deco vanity set by Cartier Paris, dated 1928. A true technical and artistic feat requiring up to 900 hours of meticulous craftsmanship, this precious yellow gold vanity case is adorned with an antique carved jadeite element, ‘mille-raies’ enamelling of the utmost finesse, and a push-button set with a sugar-loaf cabochon emerald.
This piece possesses exceptional museum-quality status: it is only the third box of this model to appear on the global market, virtually identical to the two unique examples recorded in Cartier Paris’s stock registers between 1927 and 1928. A masterpiece of absolute rarity (estimate: €28,000 / €45,000).
Lot 90
White gold ring set with an octagonal Ceylon sapphire weighing approximately 21.42 carats, flanked by navette-cut diamonds and round diamonds on the prongs
Tdd: 55 Gross weight: 13.7 g
Accompanied by: - SSEF laboratory certificate No. 155369 dated 06/11/2026 stating: Natural sapphire
Color: blue of medium strong saturation
Origin: Sri Lanka (Ceylon)
No indications of heating
- Preliminary examination by the GEM Paris laboratory No. 20261978785 indicating: Sapphire on ring
- Origin: Sri Lanka (Ceylon)
- Treatments: unheated (S1)
Estimation
100 000 - 150 000 €
Harry Winston’s excellence: The house presents a magnificent ring in platinum and yellow gold, set with a sumptuous 6.05-carat natural Burmese ruby. Certified as having undergone no heat treatment, it displays a luminous red colour with a hint of purple and remarkable purity (estimate: €25,000 / €35,000).
The splendours of Colombia: A delightful pair of earrings from the 1910–15 period, crafted in platinum and gold, set with two round Colombian emeralds weighing 1.29 and 1.40 carats, enhanced by settings of old-cut diamonds.
View the catalogue in PDF format HERE
