Impressive sterling silver and amethyst brooch, length 12.5 cm, total weight 83.4 grams, claw set with fine oval cut and emerald cut amethyst, set with a fine deep purple emerald cut amethyst in the centre, possibly Siberian origin, interspaced by small single cut diamonds, with a large double prong brooch roller clasp fitting, unstamped, length 12.5 cm, total weight 83.4 grams. Provenance: Property from the collection of the late Lady Sybil Joel, Sydney