 | The largest fancy vivid blue-green diamond in the world to come to auction. Known as “The Ocean Dream,” the 5.50-carat gem sold for $ 8.6m. (est $7.5 to $9.5) “The combination of its size, natural origin, hue, and saturated color makes it an extremely unusual occurrence,” Christie’s said in a statement.
A rare 21.41-carat cushion-shaped alexandrite with no indications of treatment and a distinct color-change from green to purple had an estimate of $500,000 to $700,000. It achieved a record price of $ 1.3m. |  |