Bleu Royal: Vivid blue diamond could fetch over $50 million at Christie's auction

Christie's hopes Bleu Royal's final bid will surpass Oppenheimer Blue's, which fetched over $57 million in 2016

Blue diamond sells for more than $44 million at Christie's auction in Geneva

This largest internally flawless blue diamond could fetch US$50 million at auction - Robb Report Singapore

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Bleu Royal diamond set to dazzle in Geneva jewels sale

Bleu Royal: Vivid blue diamond could fetch over $50 million at Christie's auction

Bleu Royal diamond rakes in nearly $44 mn at Geneva auction

Photos: Vivid blue diamond could sell for $50 million at Christie's auction

Vivid blue diamond sells for nearly $44m at Geneva auction - SWI

Bleu Royal: Vivid blue diamond could fetch over $50 million at Christie's auction