Red Diamond Play Button

The Red Diamond Play Button is a special award by YouTube for content creators who get 100,000,000 (100 million) subscribers. The only YouTube channels that have received the award are Pewdiepie and T-Series. It is made of dark glass with a piece in the center made of red molten glass. This Play Button was revealed through a tweet from YouTube themselves on September 6th, 2019. The tweet contained a video, being a timelapse of the making of the button with Baccarat's crystal work.