Hi. Looking to buy a 1.6 carat, G-I, VS2-SI1, AGS 1A cut diamond from one of the vendors on this site. I see that the diamonds listed don't have pavillion and crown angles or %, only depth and table, which leads me to believe that the diamond was probably never graded, only estimated. How can I assure that I am getting the diamond that is promised, a AGS 1A cut? Is there a law against overstating diamond cutting specs, or am I on my own? What do I need to know to assure that I am getting a beautiful diamonds as specified?