Ring

The significance of this unassuming oval cabochon emerald ring, is far greater than first appears.

Son of Sir James Thornhill, brother-in-law to William Hogarth and serjeant painter to the King, John Thornhill was also a founder member of the Whig Beefsteak Club.

The fastest growing area of the jewellery market, mourning apparel has become “hot property in the past 12 months”, says Jethro Marles of Bearne’s. Pointedly excepting the sort of heavy black jewellery produced in large quantities during the post-Albert period, he says that the material that has doubled in value over the past year is the earlier, more delicate mourning jewellery of the sort shown right.

Shortly before her execution at Fotheringay Castle in 1587, Mary Queen of Scots gave this portrait ring, right, to her lady in waiting, Mary Strickland, as a keepsake. This was the story told to Devon auctioneer Robin Fenner by the vendor, whose late mother was the last of the Boynton Stricklands.