I took a gamble on an online estate sale on a lot described as a "grab bag of vintage jewelry." No description, bad photos, but, it was an estate of really old money going back to 1710...Main attraction was this ring, which I have gotten a couple tests and know it is platinum and a Sapphire. I assume untreated unheated and natural because most of the estate was from 1920 and earlier. If it is, and somewhere in the 4-5 carat range, I think, what is a ballpark value and should I ship it to those rating companies? I cannot see any inclusions, definitely eye clean at least. Sorry my crappy cell phone won't focus if I get any closer. Sorry about duplicate photos...not sure how to edit them out.