Accompanied by report no.2175926320 dated 18 October 2016 from the GIA stating that the 5.12 carat diamond is D color, Flawless clarity, with excellent polish and symmetry, no fluorescence Also accompanied by a GIA appendix letter stating that the 5.12 carat Emerald Cut diamond described in GIA Diamond Grading Report No. 2175926320 has been determined to be a Type IIa diamond. Type IIa diamonds are the most chemically pure type of diamond and often have exceptional optical transparency.