Proof once more of the allure of market-fresh goods, the collection of Roger Soame Jenyns (1904-76) excelled at Christie’s Fine Chinese Ceramics and Works of Art sale.

The exact history of this 200-year-old saltwater pearl is unknown but it is undoubtedly a gem of considerable merit.

The sale titled California Jewelry held by Doyle in New York on November 19 includes some fine period pieces sourced by the Manhattan firm via its West Coast office.

There was a time when vintage Omega represented a cost-effective alternative to vintage Rolex. Today, the rule does not always apply.

Heritage Auctions’ Fine Jewelry Signature sale in New York on December 3 includes two rings by London-based designer and virtuoso goldsmith Elizabeth Gage.

This novel 14ct gold, cabochon emerald, diamond, and ruby brooch by Van Cleef & Arpels carries an estimate of $5000-7000 at Skinner of Boston’s sale of Important Jewelry on December 4.

The sale of the Anne Shannon collection of British and Continental designer jewellery will live long in the memory.

Tiffany exhibited only gold jewellery at the 1878 Paris exposition, including a collection of ‘Japanesque’ pieces.

Dr Anne Shannon would no doubt have admired these three pieces of turn of the century jewellery sold at UK regional salerooms in recent weeks.

This amethyst and cultured pearl ring and brooch is by Stuart Devlin (1931-2018) – the Australian-born designer and craftsman the Duke of Edinburgh described as “probably the most original and creative goldsmith and silversmith of his time, and one of the greats of all time”.

Woolley & Wallis followed the Shannon collection with a mixed-owner sale on November 1. Together the auctions brought a premium-inclusive £2.1m.

The Charterhouse two-day November 15-16 auction in Sherborne includes a substantial selection of jewellery and watches.

Among the many versions of the Rolex Oyster Perpetual Submariner, the reference 5508 with its James Bond association is perhaps the best known.

This 18ct two-colour gold and enamel Hebe brooch to a design by Georges Braque, c.1962, carries an estimate of $2500-3500 at Leslie Hindman’s Important Jewelry sale in Chicago on December 3.

By the 1950s, as the global economic landscape improved, luxury was making a comeback and so too was the prolific use of diamonds in the jewellery of France’s premier ateliers.

In the end, it was diamonds, not cake, that triggered the tragic downfall of Marie-Antoinette (1755-93) and her family. Even though the doomed queen was innocent of conspiracy, it was the affair of a diamond necklace that lit the powder-keg of revolution.