I am looking to buy two princess cut diamonds to mount them on 14k white gold studs. I found two .34 E VS2 stones. My question is- Do princess cut diamonds, or any other cuts for that matter, have their inclusions plotted on GIA certs? The vendor I spoke to told me that this is the case for 90% of diamonds less than 1/2 carat. Is he b/sing me and should I stay clear?