宝石学分析. 宝石学家使用双目显微镜、光纤、钻石比较和彩色宝石的研究。石英、蓝宝石、海蓝宝石、托帕石。托帕石比例的研究。

宝石学家

宝石学家

宝石学家

宝石学家

宝石学分析

宝石学家分析

宝石学家分析

宝石学分析

宝石分析

宝石分析

宝石学家工具

gemologist examining a green gemstone with a laser gemologist examining a green gemstone with a laser while weighing it on a

gemologist marking diamond using red pen while holding it in tweezers

gemologist marking diamond using red pen while holding it in tweezers

gemologist marking diamond using red pen while holding it in tweezers

gemologist inspecting diamond with tweezers and loupe to evaluate clarity cut

gemologist holds a small diamond with tweezers for precise inspection and sorting

gemologist holds a small diamond with tweezers for precise inspection and sorting

gemologist holds a small diamond with tweezers for precise inspection and sorting

expert gemologist examines various golden rings and jewelry pieces on a black surface using specialized tool for appraisal

gemologist inspecting diamond with tweezers and loupe to evaluate clarity and cut quality gemologist inspecting diamond with

在实验室工作站使用显微镜和分析工具检查珠宝

gemologist inspects a diamond using tweezers and loupe to evaluate clarity cut quality

gemologist inspects a diamond using tweezers and loupe to evaluate clarity cut quality

gemologist inspects a diamond using tweezers and loupe to evaluate clarity cut quality

gemologist inspects a diamond using tweezers and loupe to evaluate clarity cut quality

close up of gemologist examining diamond using tweezers and loupe for grading clarity cut

diamond placed in grading tray for evaluation of cut symmetry and proportions by gemologist

gemologist using diamond sorting tray to assess clarity and brilliance under controlled conditions

宝石学家使用显微镜和镊子检查钻石

专业的宝石学家正在黑色表面上检查各种金戒指和珠宝首饰，使用专用工具进行

expert gemologist meticulously examining a brilliant cut diamond under microscope in laboratory ensuring gemstone quality and with

宝石学家用激光检查一颗绿色宝石

熟练的宝石学家正在评估一颗鲜艳的绿色宝石

宝石学家在珠宝实验室中使用激光检查一颗绿色宝石，同时用数字秤称重

闪亮的切工钻石被镊子夹着放在分级证书上。宝石学家正在检查实验室培育的珍贵宝石的质量

宝石学仪器

刻度杠杆仪

在实验室里，一位专业的宝石学家正在借助放大仪器仔细检查一颗粉色钻石