Pre-Auction Impressions: April 20th 2016, Christie’s New York
Our pre-auction analyses focus on visual elements that are not expressed on the GIA report, such as “inner-grade”, “undertone” and “color dispersion”. We use grades 1, 2, 3, 4 and 4+ to evaluate these features. It is often difficult to identify ###truncate### these characteristics when viewing stones in an auction catalogue.