Oh crikey I hate to say this but if it's being sold by Sotheby's then it's going to have a very high reserve and will probably sell for much more than it's worth. I've managed to buy some wonderful browns of a carat and over for very very very little money! I appreciate that at 5ct it's a lovely big stone but even so ............... Here's one of mine 1ct etc., untreated, SI1- please excuse the setting as it's awful and has mucky fingerprints on the stone obscuring its prettiness! I got this for under $700 (stone only)
Very nice, LD. Are you sitting down? The estimate for the Sotheby's ring is $60K - $80K. The flanking diamonds (no report cited) are 2.95 ct, "near colorless." No clarity info for them given, nor treatment. And you didn't have to pay whatever-million in Sotheby's premium!