All of our jewelry is guaranteed authentic by our Graduate Gemologist of the Gemological Institute of America (GIA). 14k White Gold Art Deco .78ct Genuine Natural Diamond Filigree Ring GIA (#J5194) Art Deco 14k white gold pierced filigree ring featuring an old European cut diamond weighing .78cts measuring 5.65mm x 5.93mm and has a GIA report that states J color with I-1 clarity. The ring fits a size 5 1/2 finger, weighs 1.1dwt., and dates from the 1920s. Extraordinary! E-Reports can be viewed online and a copy will be provided. Please note: This item may be slightly under the karat stamp due to year of production or composition variances - such as sizing or modifications - as they may affect metal purity. Vintage pieces generally have a slightly lower karat percentage than the stamp. SKU#J5194. 100% Satisfaction Guaranteed!