https://www.thestar.com.my/videos/2008/11/02/master-of-the-south-sea-pearl/
The sea pearls cultured in Sabah (South China Sea) water are not always round.
https://www.thestar.com.my/data/archives/2013/07/11/05/45/master-of-the-south-sea-pearl/
Like what Paul said, come to Sabah to witness...