5 juillet 2011
Rare Blue Diamond by Bulgari Offered by Bonhams
A diamond and blue diamond crossover ring, by Bulgari. Estimate: £600,000 - 800,000. Photo: Bonhams LONDON.- One of the world’s rarest stones, a blue diamond, will be offered in the Fine Jewellery Sale at Bonhams, New Bond Street on September 21st and...