An Art Deco Emerald, Gem-set and Diamond Bar Brooch,, by Cartier Paris, Circa 1930

Centring upon a carved cabochon emerald, between two carved emerald beads, enhanced by corallium rubrum and onyx plaques, to single-cut diamond accents, emeralds approximately 11.35 carats total, signed Cartier, numbered, maker's mark, French assay marks, length 5.3cm

Accompanied by an authenticity report from Cartier, Paris. Report number GE2007-173, dated 26 September 2007.

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Cartier
Joining the family firm at the turn of the twentieth century, three brothers had grand plans for its future. Louis, Pierre and Jacques Cartier wanted to grow the modest Parisian jewellery store that their grandfather had founded in 1847 into the leading jewellery business of the world.

In an age before globalization, it was an unusually ambitious goal but they were determined and they had a plan: divide and conquer.

They split the world between them, with each brother taking responsibility for a different region. Louis - the eldest - remained in Paris, looking after the chic continental European clients and creating some of the most sought-after jewellery, objets d'art and timepieces of the early twentieth century. Pierre, an astute businessman, spotted the opportunity in America well before most of his French peers and opened a New York branch in 1909 to cater to the new class of wealthy industrialists, glamorous heiresses and Hollywood stars. Jacques, the youngest, managed the London branch, where he designed pieces not only for the English aristocracy, but also for clients from the British colonies, and most significantly the Maharajas of India. Since 1911, from his frequent trips to the East, Jacques brought back many exotic stones and ideas which inspired the luxurious jewellery collections following that era and whose DNA we see in today's creations.

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