Hé lộ “miếng bánh” giám định kim cương Việt Nam: Những doanh nghiệp đang chia nhau thị phần

VTC News | Unlike gold – where diamond content can be determined in many places – diamond grading is a field with very high barriers to entry. Not every business can invest millions of dollars in labs, machinery systems, a team of qualified graders, and the capacity to issue certificates accepted by the market. As a result, for many years, the diamond appraisal "pie" revolved almost entirely around a very small group of businesses. VTC News' Official YouTube Channel - Updating the fastest and most accurate current affairs news Connect with VTC News at: ✓ Website: http://vtcnews.vn ✓ Facebook:   / vtcnewsvn   ✓ Twitter:   / vtcnewsvn   ✓ Youtube:    / @vtcnewstintuc   Managing agency: Voice of Vietnam Radio Email: [email protected] #VTCNews #xuhuong #News #baodientu #tintuc #thoisu