The 10-carat Mediterranean Blue is the expected to fetch as much as $20 million dollars at the Sotheby's sale.

Christie’s is getting ready to present The Golconda Blue, the largest ... forms part of the British Crown Jewels, the Darya-i-Nur in Iran and The Princie Diamond.

To captivate collectors and history enthusiasts alike, the illustrious Golconda Blue diamond is heading to auction. A ...