JTR | Jewellery Technology Research

located at the crossroads of europe and asia, jtr’s (jewellery technology research) gemmological institute stands on the shoulders of numerous qualified women and men who have graded millions of diamonds on its premises during the past decade and a half. with its establishment, jtr is taking diamond and diamond jewellery grading into the future. its laboratory is equipped with the latest gemmological instruments, tools, and technology. jtr’s graders follow the diamond industry and trade’s internationally accepted grading standards and practices. deeply rooted in the practices of traditional diamond grading and aided by unrivaled know-how and its innovative technologies, jtr provides its clientele with unambiguous grading data and complete confidence in the integrity of the grading process. but that is not all. through its extensive r&d efforts, innovative trademarked technology, extensive data accumulation, and the application of ai (artificial intelligence), jtr is at the forefr