Necklace

A 200-year-old saltwater pearl, later mounted in a Belle Epoque necklace, has sold at a hammer price of £150,000 at Roseberys in West Norwood (plus 25% buyer’s premium) to a London phone bidder.

A fine example of Grand Tour jewellery comes up for sale at Peter Wilson of Nantwich this month.

A fine example of Grand Tour jewellery comes up for sale at Peter Wilson of Nantwich on September 13.

The price of amber necklaces soared in 2013 and top prices are still being achieved at auction, often valuing the natural untreated beads at twice that of 24ct gold.

Two Russian diamond necklaces, with links to Peter the Great and Catherine the Great, will be auctioned by Sotheby’s in Geneva next month with a $10m estimate.

This gold and peacock blue enamel necklace designed by Archibald Knox sold for £31,000 at Mallams in Oxford.

This silver and labradorite floral necklace designed by Georg Jensen c.1915 sold for $17,000 (£10,970) at a recent auction held by Skinner of Boston.

Martel Maides of St Peter Port, Guernsey offered a single-strand pearl necklace for sale with a £1500-2000 estimate on the assumption they were natural saltwater pearls – the highest bidder reserving the right to send them for laboratory testing prior to settling the bill.

A Victorian diamond rivière necklace sold to an anonymous bidder for £190,000 at Duke’s of Dorchester earlier this month.

Is there a Christmas factor in the auction rooms? Cheffins auctioneer Jonathan Law (Buyer’s premium: 15 per cent) believes that the season may have some effect in putting a little pressure on people to buy rather than wait.

AUCTIONEERS David Lay (15% buyer's premium) of Penzance can rely on strong local demand for home-grown collectables such as Newlyn copper and Troika pottery at the bi-monthly sales.

Few pieces of Victorian jewellery have survived in such sparkling condition as this Kashmir sapphire and diamond necklace which sold at Dreweatt Neate’s Donnington Priory saleroom near Newbury last week for £240,000 (plus 15/10% premium) – the highest ever price for jewellery at a provincial saleroom.