It's a fun and visually appealing form of poetry that follows a specific structure:
* One word at the top (the "point")
* Two words in the next line
* Three words in the third line
* Four words in the middle line
* Three words in the next line
* Two words in the next line
* One word at the bottom (the "point")
The words in a diamond poem usually relate to a theme or a single subject.