Φ Andrew Grima, an impressive gold, amethyst and diamond necklace, circa 1969, the hinged gold

Φ Andrew Grima, an impressive gold, amethyst and diamond necklace, circa 1969, the hinged gold collar suspending a large oval step-cut amethyst in an abstract setting composed of oval motifs, accented with single-cut diamonds, mounted in 18ct gold, signed Grima, British hallmarks for 18ct gold, London, 1969, sponsor’s mark HJCo, length 50cm, pendant length 6.5cm, pouch by Grima