An amethyst, pearl and diamond brooch, Adrian Lewis, Melbourne. Modelled as a moth, the abdomen a pear-shaped amethyst of estimated weight 13.5 carats, the thorax a button-shaped pearl, with diamond set antennae. Estimated diamond weight 0.20 carat. 18ct yellow gold. Weight 13.77 grams. Width 45 mm. Gemmologist's report available.