Cartier Burmese ruby and diamond ring. Set with an oval cabochon natural unenhanced Burmese ruby in an open back claw setting with an approximate weight of 1.80 carats, further set with two square baguette cut diamonds in open back claw settings with a combined approximate weight of 1.20 carats, to a stylish three stone design, featuring curving corner claws, a structured openwork gallery and fancy open backholing, flanked by trumpeting split shoulders flowing through to a solid slim D-shape shank. Marked platinum, signed 'CARTIER', partial maker’s mark for Henri Picq, French, circa 1913, accompanied by Gemmological Certification Services report #5775-3269, accompanied by IAJA Expertise report #XP2149-181224.

While remaining largely under the spotlight, the Parisian workshop of Henri Picq is responsible for some of the most exceptional jewellery of the early 20th Century.

Picq began working with Cartier in 1900, and over the subsequent years, he worked almost exclusively for the firm creating some of their most beautiful, complex and celebrated jewels. The workshop was said to use "the best platinum in Paris" which was renowned for its white, shimmering surface which the Picq workshop were particularly proud of.

During the 1920’s Picq made many of Cartier’s iconic ‘Tutti Frutti’ jewels as well as some of their magnificent Art Deco pieces.

A jewel made by the Picq workshop is guaranteed to be not only beautiful to look at but also beautifully made, a quality appreciated by all discerning jewellery collectors.

This ring is in excellent condition.