Accompanied by GIA reports numbered 5131196727 and 5121664205, dated 16 March 2011 and 7 October 2010 respectively, stating that the 6.60 and 6.57 carat diamonds are D colour, Internally Flawless clarity; also accompanied by diamond type classification reports stating that the diamonds are determined to be Type IIa diamonds. Type IIa diamonds are the most chemically pure type of diamond and often have exceptional optical transparency. Further accompanied by Gübelin reports numbered 11038089 and 1011064, dated 26 March 2011 and 25 November 2010 respectively, stating that the 6.60 and 6.57 carat diamonds are D colour, Internally Flawless clarity; also accompanied by notes and appendix stating that both diamonds are classified as aType IIa. "Diamonds of this type, exhibiting an antique cutting style as well as superior quality, are very rare and will most certainly evoke references to the historic term of 'Golconda'."
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