Abstract: With the continuous increase of global jewelry consumer demand, the jewelry identification market is also expanding, and consumers have put forward higher requests for detection technology in gemstone identification. Detection technology in gemstone identification is often accompanied by gemstone synthesis and gemstone optimization techniques, therefore, the analysis of detection technology in gemstone identification can also reflect the development of gemstone synthesis and gemstone optimization techniques in jewelry industry to a certain extent. And analyzing the technological development in the industry through patent application data is a very effective way. This article analyzes the annual trends of patent applications for detection technology in gemstone identification, applicants' countries/regions, and technological development trends of the major applicants, and comprehensively explains the development of detection technology in gemstone identification on a global scale. Finally, from the perspective of the layout of patent applications, some suggestions are given for the development of gemstone identification institutions and enterprises.