centring on a watermelon tourmaline crystal within an undulating textured mount accented with three brilliant-cut diamonds, British hallmarks for 18-carat gold, London 1966, maker's mark HJCo, 5 x 4cm

Accompanied by a facsimile of a valuation report from Grima dated 9th march 1976.

Andrew Peter Grima (1921-2007) started designing jewellery in the workshop of his father-in-law's Haller Jewellery Company (hence the HJco maker's mark) in 1948. By the 1960s, his flamboyant yet organic creations were regularly worn by members of the British royal family, as well as by Jacqueline Onassis, Ursula Andress and others in fashionable society. He opened his famous premises in Jermyn Street in 1966, the same year Prince Philip purchased a brooch of rubies for the Queen. Designing state gifts for Royal visits, he held the Royal Warrant from 1970 until 1986. The Queen was wearing Grima's ruby brooch during her 2007 Christmas message, broadcast the day before he died.