With the known history of humanity, ornamental stones have been at the point of attraction of people. In the historical process, while mankind often used the glittering charm of ornamental stones to make themselves look beautiful, they were used for various purposes such as the symbol of power and power, the reserve vehicle, and industrial equipment. It can be said that it is not wrong to say that it is one of the most known ornamental stones and the first thing that comes to mind. Diamond, which is one of the most studied, processed and sought-after stones, has a structure made of pure carbon and can be considered as a worthless piece of glass when it is found in nature. Despite this, diamond, which has an eye-catching structure when processed, remains one of the hardest materials in nature and remains indispensable for human beings. In this research, diamond; It was aimed to evaluate the use of jewelry, use it in jewelry design, cut shapes while designing jewelry, determine the forms of use and reasons for use. Depending on this purpose, the gemological properties of the diamond, its place in history, its usage places, its evaluation as a reserve, its use in jewelry production in jewelery are emphasized. The research is a descriptive method based on literature review and field study. The data obtained from the field study and the printed, digital resources reached within the scope of the research are assumed to be reliable and sufficient. The research is unique in that it is interdisciplinary and it is a regular study for those who will work on this subject. The data obtained within the scope of the study is presented regularly within the required titles and the subject is tried to be discussed within this scope.

Keywords: Diamond, , Jewelry Design, Jewelery, Gemology