#Repost @bonhams1793 ・・・ This superb #diamond ring, Type IIa, D color brought an incredible $1,807,500 incl. premium at Fine #Jewelry sale in #NY. It was accompanied by a diamond type classification report, dated August 31, 2016, stating the 16.90 carats diamond is a Type IIa diamond. Many of the most famous diamonds throughout history have been Type IIa: the world's largest cut diamond – the Cullinan, the Koh-i-Noor and the Hope Diamond are, but few, examples. This diamond has been awarded the highest color grade of D – also known as colorless or exceptional white – and possesses internally flawless clarity. #BonhamsJewels @bonhamsjewels #typeIIadiamonds #diamondcolorD #rocksnotstocks #BonhamsNY