I have an amazingly brilliant clean and mid Cornflower Blue Ceylon Sapphire that is 5.92 carats I’d like to sell. It does not appear to be heated ether. So it’s Unheated/Natural. I’m looking for any reasonable offers on it. According to IGS Price guide based on Cut, Color (super nice tone and saturation) Clarity and Carat Weight it should sell for around $37,400 but thats a high hope I believe. Can anyone tell me best way to sell this ( I have others even larger but not quite as brilliant) and what you think this is worth also. it measures 11 X 8.5 X 8 mm. Thank you in advance.- Mike