Explore the complexities of distinguishing synthetic diamonds from natural ones in this 28-minute talk by Wuyi Wang from the Gemological Institute of America. Delve into HPHT and CVD synthetic technologies, learn about advanced identification techniques like photoluminescence spectroscopy, and examine the structural differences between HPHT synthetic and natural diamonds. Gain valuable insights into the challenges faced by gemologists in the ever-evolving field of diamond authentication, presented as part of the Mineralogical Society of America's Centennial Symposium on scientific characterization of high-value gemstones.