IGI vs GIA Diamond Certifications: (2025) Ultimate Guide,Business Directories,Company Directories

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认证钻石、宝石和珠宝分级 | IGI
IGI 对每颗宝石进行分析，以确定宝石的种类和品种，提供详细信息，并披露任何存在的处理方法，确保消费者获得 IGI 认证宝石的完整性。
Certified Diamonds, Gemstones Jewelery Grading | IGI
Explore IGI diamonds and gemstone certification trusted worldwide for quality authenticity Learn about IGI’s grading standards global certification process
Diamond Grading Process Quality Scale For Assessment | IGI
Discover the diamond grading process at IGI Learn about the diamond grading scale, overall grading process how the diamond quality chart is used for assessment
Report Verification - Diamond Gem Certification | IGI
Verify your IGI report and explore trusted diamond and gemstone certification IGI grading reports ensure accuracy in cut, clarity, color, and authenticity
关于我们 - 国际宝石学院 - IGI
IGI 的宝石学院是探索令人惊叹的钻石、宝石和珠宝世界的终极源泉。无论您是想成为更自信的买家还是行业专业人士，IGI 都能为您提供世界上最多样化的课程，您可以亲自参加，也可以通过在线学习和网络研讨会参加。
上海 - IGI
上海北京市朝阳区中山二路600号（东）BFC S2座1201-1203室中山东路 600 号上海 +862138760730 lab shanghai@igi org 提供的服务宝石实验室宝石学学校
Gemstone Identification Report For Authentic Verification | IGI
IGI was the first laboratory to develop reports for finished jewelry and continues to lead the field today More complex than the analysis of loose gemstones, IGI’s expertise in the analysis and documentation of finished jewelry items is unrivaled anywhere
IGI：定义宝石认证的全球标准 - IGI
自成立以来，国际宝石学院（IGI）始终坚持其作为独立第三方鉴定机构的使命--不偏不倚，不受外界影响。我们对透明度、诚信和科学准确性的承诺为我们赢得了全球消费者、制造商和零售商的信任。