Jewellery, Watches, Silver and Objects of Vertu

An 18ct gold watermelon tourmaline and diamond set brooch by Andrew Grima, 1970, the polished tourmaline crystal slice mounted within a partial surround of triangular motifs with beaded finish and brilliant-cut diamond highlight, signed ‘GRIMA’, maker’s mark ‘HJCo’, London hallmark, length approximately 5.5cm. £2,400-£3,000