In the world of scintillation and fire, colored diamonds proved to be the most crave-able treasures at the auction block during 2017. This past year saw an impressive $1.1 billion worth of exceptional top-tier diamonds, colored gems and jewelry sold. Clearly the most sought after pieces were large, luscious and so very rare pink and blue diamonds, however there were also a few stellar D-Flawless diamonds that rounded out the party. Here is a look at the top earning jewels of the year. The grand prize went to a Hong Kong retail jewelry chain, Chow Tai Fook. The retailer scooped up the…