I bought two sapphires from a store on eBay called BrilliantSolitaires and was assured they were naturally mined white sapphires. They are both Emerald cut, but one is 11x9mm, 6 carats and the other is 14x10mm, 9.70 carats. The seller also noted that they were HPHT treated. I went and got them inspected because they cost less than $200 in total. The lady told me they both were recognized as sapphires, but could not tell me whether or not they were natural or synthetic. I was hoping to get the larger one re-cut because the window is quite large, but I'm not sure it's worth the money. What do you think?