MARGHERITA BURGENER: AMETHYST AND DIAMOND FLOWER RING Designed as a flower with purple titanium petals, the central oval-cut amethyst within a brilliant-cut diamond surround, signed Margherita Burgener, maker's mark MB, ring size approx. M, maker's case and box Footnotes: Please note this lot has VAT at the prevailing rate on both Hammer Price and Buyer's Premium. This lot is subject to the following lot symbols: Ω Ω VAT on imported items at the prevailing rate on Hammer Price and Buyer's Premium. For further information on this lot please visit Bonhams.com