A gem-set brooch in 18ct bi-coloured gold, of aigrette form, featuring a teardrop-shaped peristerite cabochon (other names: rainbow moonstone/ white labradorite) in collet, approximately measures 16.0 x 13.3 mm, emanating stylised feathers with diamond accents, London hallmarked 1997, maker's mark 'MJV', 7.5 cm long, 15.0 grams.