Based on the new, first of its kind Fancy Color Diamond Index, fancy colored diamond valuations have increased by 167% on average since January 2005. Much of this growth is fueled by an astonishing 360% growth in the value of pink diamonds, followed by blue diamonds, which have shown an equally consistent growth of 161%.
Fancy colored diamonds dramatically outperformed key global asset indices in the last decade. For example, the Dow Jones Industrial Average has notched a 58% increase, the S&P 500 a 63% increase, and London housing a 82.1% increase during the same period of time. Importantly, fancy color diamond values were unaffected by the global financial crisis of 2008 to 2010.
Read more here on the new Fancy Color Research Foundation colored diamond index and colored diamond valuations.