细节
AN ELEGANT UNMOUNTED RECTANGULAR-CUT DIAMOND
Weighing approximately 20.22 carats
With report no. 12220267 dated 16 August 2007 from the Gemological Institute of America stating that the 20.22 carat diamond is D colour, internally flawless clarity, excellent polish, excellent symmetry; accompanied by a working diagram indicating that the clarity may be improvable to flawless