It's a logo of a pineapple. At the is the rounded and pointy leaves of the pineapple that are layered multiple times. The pineapple itself has a repetitive pattern of diamond shapes.
This Pineapple icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,100 icons, all in the same style and quality.