London

Cartier’s aquamarine jewellery appears to have been predominantly produced from the London workshop starting in 1932.

Bonhams’ London Jewels sale on June 5 features a spectacular Cartier turquoise and diamond tiara that comes by descent from Nancy, Viscountess Astor (1879-1964).

Event generates decent sales and a lively atmosphere during a busy weekend overall for collectors and dealers

A previously unrecorded Elizabethan gold signet ring, a gift from the influential Tudor financier and merchant, Sir Thomas Gresham (1519-79), comes for sale at Noonans on June 17.

This Victorian acrostic gold, hardstone and paste necklace, probably made in Rome c.1890, sold for £3800 (estimate £2000-3000) at Olympia Auctions’ (25% buyer’s premium) Jewellery & Watches sale on May 22.

Dealers have voiced their concern at changes to the next staging of The Winter Art & Antiques Fair at Olympia.

There’s no denying that we live in uncertain times. The impact of recent financial turmoil has hit dealers and collectors alike.

A very early enamel map of the London Underground will be unveiled at a specialist fair next month.

Like Toulouse Lautrec, Ramon Casas y Carbo (1866-1932) was not only an avant-garde artist but a master poster maker and graphic designer.

Chiswick Auctions (26% buyer’s premium) held a sale titled The Art of Nature – a themed catalogue of art and antiques based on the natural world.

Now celebrating on-the-field success thanks to a 1-0 victory against Manchester United in the Europa League final on May 21, Spurs also came top in the saleroom seven days earlier.

Latest sales suggest a wider collector base targeting history and topography