YES, YES and YES!  If it is a quality diamond over 0.50ct, unless you are a professional Diamond buyer with years of experience or have guarantees in writing and the company has an impeccable reputation we never recommend purchasing a diamond with out a certificate from a third-party, don’t even consider it.  Many people do not disclose or even are aware they are purchasing or selling diamonds that have been treated or altered.  Have you ever experienced or had friends purchase a diamond to find out its inferior after you laid your money out?

- Troy Lob, Graduate Gemologist (GIA), Vice President, Liberty Diamonds