A fabulous Art Deco diamond key brooch attributed to Mauboussin, with exceptional geometric design and beautiful period diamond setting. The key features a large circular head completely set with diamonds, framed by strong rectangular details and an elongated shaft finished with a geometric notched tip. A gorgeous combination of baguette, carré and old cut diamonds creates incredible texture and brilliance throughout, with the clean platinum setting giving each section beautiful definition.
Crafted in platinum and set with approximately 3.50 carats of diamonds, estimated G–H color and VS–SI clarity. The combination of straight step-cut geometry and old cut diamonds is particularly beautiful, showcasing the exceptional craftsmanship and design of the Art Deco period. The reverse features a locking trombone clasp, allowing the piece to be worn as a traditional brooch or incorporated into a necklace as a pendant or extender.
Measuring approximately 46 × 16 mm and weighing 7.7 grams. This brooch is punchmarked and numbered. It’s a wonderful example of Art Deco jewelry design with strong geometric lines, fine diamond setting and the versatility to be worn several ways
