guys in the new episode sworn to the sword when pearl takes connie and steven to train there was 4 stones shaped as a diamond and clolored with pink-yellow-white-blue could this be the diamonds and when they fuse they create green dimond?
The Green Diamond theory is based on the interlocking triangle symbol on the floor of Peridot's warship. There's a small green triangle where the yellow, white and blue triangles intersect. She is speculated to be a fusion between Yellow Diamond, White Diamond and Blue Diamond. (Only Yellow Diamond has been officially confirmed.)