Like paintings by famous artists, pieces of jewellery from the top design houses will always be of outstanding quality, and always hold their value.

Clockwise from top left:

A pair of 18k yellow gold and steel cufflinks, signed & numbered Bulgari, Italy, '90s

A pair of 18k white gold, sapphire and diamond ear clips, signed & numbered Leo Pizzo, around 3 carats of sapphires and 2 carats of diamonds, Italy, recent

A pair of 14k yellow and gold cufflinks, signed Tiffany, USA, '90s

An 18k yellow gold and amethyst ring, signed Cartier, France, recent