jmLÄWhitney Flame Topaz - Ouro Preto, Brazil - 48.86 carats. Saw this at the Smithsonian in Washington DC. If people are interested, I have tons of other stone photos!
https://i.imgur.com/MS5H1kO.jpg
https://whatsonchain.com/tx/d33f5fb8b330cc9bacc9982a04e98bceb686c62d54f85a5050a026ae4ccc3306