A pair of Italian diamond earrings, the Art Deco style drops of geometric design, set throughout with old brilliant and rose-cut diamonds, cased by ‘Calderoni’, total diamond weight approximately 0.70 carat, length 38mm. £1,000-£1,200

Calderoni’s was established in 1840 in Milan’s Via della Lupa, and in 1870 opened in Piazza Duoma, and became the official supplier to the House of Savoy, their customers including nobility and the royal houses of Europe. In 1942, Calderoni moved to Via Montenapoleone, symbol and centre of Italian luxury in the European Capital of Fashion, design and jewellery, winning the prestigious Diamonds International Awards four times. It remains Calderoni’s flagship store in Italy to this day and from 2006 formed part of the Damiani group.