Yttrium aluminum garnet (YAG) is a synthetic crystalline material commonly used in various applications, including lasers and optics. It is composed of yttrium, aluminum, and oxygen, forming a structure that is similar to natural garnets. YAG is known for its excellent thermal and chemical stability, making it suitable for high-performance environments. In addition to its use in laser technology, yttrium aluminum garnet is also utilized in jewelry as a diamond simulant due to its brilliance and hardness. Its versatility extends to electronics and phosphors, where it plays a role in producing bright, efficient light in devices like LED lights.