Holiday Jewelry Guide
The holiday season is upon us, and the shopping has already begun. If you want to buy jewelry for gifting your loved ones, we are here to help! We’ve put…
Has the GIA’s cut grading system for round brilliant diamonds made lower cut grades redundant? (left) Polish lines seen through the table - (right) Actual lines on the pavilion girdle facetImages courtesy of the Russian Gemmological Centerclick here to see a larger version In 2006 the Gemological Institute of...
The Internet has bought the world a click away. Shoppers are now offered a huge number of diamond and jewelry options from different parts of the world. A lot more information and the specifications are available today and price and quality comparisons can be made thanks to our consumer advocate website Pricescope.c...
Labs grading mistakes are a diamantaires favorite topic of conversation; are mistakes myths or reality? We aim to find out. If major labs give the same diamond 2 or more grade differences, this is more than a borderline difference of opinion. We want your help to find examples (like this one). We will send ston...
Introduction At the start of 2006 GIA began, for the first time ever, issuing cut grades for round colorless diamonds. Evidence suggests this system, that was meant to help, could actually disadvantage many retailers and consumers. Background GIA began a computer ray tracing Cut Study in 1...