Sotheby's tips largest blue diamond at auction to fetch $48m
De Beers Cullinan - the rarest blue diamond at auction in Hong Kong - LUXE.TV
blue diamond – The Diamond Certification Laboratory of Australia (DCLA)
blue diamond – The Diamond Certification Laboratory of Australia (DCLA)
This 45-Carat Round Diamond Could Sell for $6M Online
Hong Kong Jewellery Magazine - The International Magazine for Jewellery Professionals
Why is it expensive: The De Beers Cullinan Blue Diamond worth $48M
Diamond earrings sell for world record $57.4m - BBC News
Diamond earrings sell for world record $57.4m - BBC News