The article about it puts a rough (ha) expectation of the sale price at about $70 million.
The question in my mind is: could they cut it to be bigger than the Cullinan I, in the sceptre of the British Crown Jewels, currently the largest cut blue-white diamond in the world (530.2 carats)? I know I asked that same question in my first posting on this. But I think that's going to be the big question after the sale.
I have no idea if the buyer will go for the record or not, but I would think that whoever buys it would certainly consider the option. It all depends on what's inside the rock.