Expert Gemstone
Certification Services
Ensuring quality, authenticity, and transparency in jewelry.
Gemology Courses
Explore our comprehensive gemology education programs today.
Global Impact
Trusted Certification
Quality Assurance
Reliable grading for diamonds and gemstones worldwide.
Leading Gemstone Certification Organization
Founded in 1975, AGS is a global leader in grading and certifying diamonds, gemstones, and jewelry, ensuring quality and transparency in the jewelry industry through reliable certification and education.
Gemstone Certification Services
Global Operations
Operating worldwide since 1975, ensuring transparency and trust in the gemstone certification process.
Gemology Education Courses
Gallery
Explore our certified diamonds, gemstones, and jewelry collections.
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The gemology courses offered by AGS were informative and engaging, enhancing my knowledge in the jewelry industry.