Three Star-Shaped Gems are scattered throughout the Shirikoro Peak underground in Tsurumi Island. When these gems are collected and inserted into certain murals, a treasure chest spawns.

In the ruins under Shirikoro Peak, you’ll find Star-Shaped Gems. Our Genshin Impact guide explains the Star-Shaped Gem locations, where to put them, and where to find the Electro Seelies it spawns.

All three of these locations are located underneath Shirikoro Peak. Travelers must also complete "A Particularly Particular Author" and do some of "Octave of the Maushiro" to collect these Star ...

Genshin Impact star shaped gems are a necessary part of the Tsurumi Island quest chains. ... The first Seelie is near the Shirikoro waymark location, and the second is at the peak of Mt. Kanna.