Lot 203, a Cartier lapis lazuli ring, is striking for its Art Deco simplicity (estimate: £8,000-10,000). Christie's Important Jewels Sale on 26 November at King Street in London.

Lot 203, a Cartier lapis lazuli ring, is striking for its Art Deco simplicity (estimate: £8,000-10,000). Christie's Important Jewels Sale on 26 November at King Street in London.