Welcome to the world of Outrageous Diamonds Signature Diamonds. The Signature diamond is a 100% real natural diamond which has not been treated nor enhanced in any way. Each diamond in our Signature Collection has been independently certified by the Gemological Appraisal Laboratory of America. The appraisal laboratory that provides us with each diamond ring's appraisal certificate is located in the heart of the New York diamond district. This reputable laboratory has been in business for over 30 years serving the jewelry industry nationwide and employing top GIA graduate gemologists.This diamond is part of the Outrageous Diamonds Signature collection, which is the ultimate in fine diamonds. Each diamond is certified to have maximum brilliance which only comes when the critical and exacting proportions of a Signature diamond are met. In order to classify as part of our Signature Collection- the diamonds must have characteristics (based on cut, color, clarity, measurements) that are a minimum of a VG (very good) rating or better.The quality of Outrageous Diamonds Signature Collection rivals diamonds found in the finest retailers around the world. As diamond importers and wholesalers we have access to these scarce diamonds and are able to collect and hold them for our most discerning buyers. Please call us at 212-230-1616 with any questions you may have.