“Rare pink diamond to fetch £7m at auction”

Created by Sandra Åhlén on 2011-04-09; known on 2011-04-12; judged wrong by Sandra Åhlén on 2011-04-13.

• Sandra Åhlén estimated 50% on 2011-04-09
• Sandra Åhlén changed the deadline from “on 2011-04-13” and changed their prediction from ““Rare pink diamond to fetch £7m at auction” – http://www.bbc.co.uk/news/business-13022134” on 2011-04-09
• Sandra Åhlén said “http://www.bbc.co.uk/news/business-13022134” on 2011-04-09
• Ben Doherty estimated 45% on 2011-04-11
• gwern estimated 70% and said “they would know, and the rich are flush these days with art prices ever higher” on 2011-04-12
• Sandra Åhlén said “http://www.christies.com/about/press-center/releases/pressrelease.aspx?pressreleaseid=4677” on 2011-04-13
• Sandra Åhlén   judged this prediction wrong on 2011-04-13.
• gwern said “didn’t even sell, huh. how embarrassing.” on 2011-04-22