This lacks a doubt among the most beautiful, brilliant diamonds, marquise shape that I have actually ever seen and I have been in the diamond business for 26 years. The shape and proportions are absolutely unbelievable, very uncommon for a marquise to be so best. It might not be any even more ideal. It is an SI quality, but among the cleanest SI's that you will ever see. Absolutely clean to the naked eye and really clean even when viewed through 10 power microscope.! It was accredited in 1998 and GIA was more stringent back then than it is now. The measurements are 18.75 mm x 9.64 mm x 6.05 mm. A really amazing diamond! It is in a diamond holder, not a ring.

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