Old, single-cut and square-shaped diamonds, platinum (French marks), circa 1925, signed Linzeler Marchak, numbered

Diamonds: main old-cuts for approximately 0.50 carat each. Approximate total weight of 11.00 - 12.00 carats

Size/Dimensions: 18.7 cm long
Gross weight: 39.0 grams

Bonhams, New York, April 2017, sale number 24178, lot 11

The house of Linzeler Marchak was established in 1922, when Parisian jeweler Robert Linzeler formed a brief partnership with Russian jeweler Alexander Marchak. Robert came from the distinguished Linzeler family of jewelers, whose legacy in the trade dated back to the early 19th century. Alexander, on the other hand, was the son of Joseph Marchak, known as the "Cartier of Kiev," who had relocated to Paris in 1918.
Together, Linzeler and Marchak created a range of exquisite pieces, from geometric gem-set rings and drop earrings to elegant openwork brooches, pendant watches, and elaborate desk clocks, all imbued with a distinctive Art Deco style. They collaborated with master craftsmen and specialized workshops, including Vacheron Constantin for watch and clock movements, Strauss, Allard & Meyer for vanity cases, and renowned artisan Vladimir Makovsky, known for his breathtaking mother-of-pearl inlays.
Their exceptional craftsmanship earned them a prestigious spot among the 30 jewelers selected to exhibit at the Exposition Internationale des Arts Décoratifs et Industriels Modernes in 1925, where they were honored with a Grand Prix. Unfortunately, the partnership got dissoluted that same year but it is not until 1927 that the double signature got replaced by A. Marchak.
Linzeler Marchak signatures are known for their combination of superb craftsmanship and design typical of the highly sought after Art Deco style as visible in that diamond bracelet.