Dec 27 Dec 27 Montblanc 4810 Large Ring in 18k White Gold with Diamonds Polka Popp Charlotte Casiraghi, Accessories, Rings Montblanc 4810 Large Ring in 18k White Gold with Diamonds From the 4810 collection. Purchase Worn by Charlotte Casiraghi on:2 May 2016 - MET Gala Leave a comment