Arco Valley Pearl

The Arco Valley Pearl is a white {{convert|575|carat|g}} natural blister baroque pearl with pink and yellow overtones.{{Cite web |title=Arco-Valley Pearl |url=https://internetstones.com/arco-valley-pearl-genghis-kublai-khan-marco-polo-575-carat-natural-saltwater-pearl.html |access-date=2024-06-28 |website=internetstones.com}} It measures 79 x 41 x 34 mm. It is the largest natural pearl outside a museum and the second biggest ever. Mongolian emperor Khubilai Khan reportedly gave it to Marco Polo.{{Cite web |last=Saritha |date=2022-07-26 |title=Arco Valley Pearl – Luxury |url=https://www.youandi.com/arco-valley-pearl-luxury/ |access-date=2024-06-28 |website=You and I |language=en-US}}

During 2007, an UAE collectionner said he bought the pearl from a French owner for 8M US$ but it is still owned by a European company (August 2008).{{Fact|date=March 2009}}