A little trick to finding even more value.
Every individual diamond is unique. Every individual person is unique. Diamonds are graded by individuals. So it could easily be assumed that the same diamond, if graded by two different people, would receive two differing grades. This can be the case, though some more widely recognized laboratories have a greater degree of consistency across the board than smaller laboratories. In June 2013, the Rapaport Diamond Trading Network (RapNet) got back the results from 10 diamonds graded by half a dozen different brands of diamond grading laboratories. The degree of variance between grading laboratories was not always extreme though one thing was clear: some laboratories are stricter. The GIA labs ranked as the ones demanding the highest quality for a diamond to receive a high grade. An article on RapNet's analysis was published here: http://www.diamonds.net/news/NewsItem.aspx?ArticleID=43417 There was a surprise, though, in that IGI labs were almost on par with