An exceptionally rare blue diamond went under the hammer in Geneva late Tuesday, selling for $21.5 million, Sotheby's auction ...

Christie’s has pulled the 23.24 carat Golconda Blue, “the largest Fancy Vivid Blue Diamond ever to be offered at auction” after “the owners…made the decision to pursue a sale of the diamond to a ...

The musician stepped out to the brand's Blue Book 2025: Sea of Wonder launch ... She spotlighted the Tiffany diamond-encrusted vine necklace on her décolletage by going topless under her jacket.

Some items, like special orders, cannot be returned, while others, like engraved rings and diamonds purchased through the Blue Nile Diamond Upgrade Program, have special return stipulations.