My Specialty

Throughout my 25-year tenure as a certified Gemstone Expert, I have provided an array of services spanning from gem identification to grading.

My Specialty

What I Do

Diamond Brokerage

Gemma Antonini offers a premier Diamond Brokerage service, leveraging her 25 years of certification as a gemologist. Her service encompasses expert consultation for both buyers and sellers, providing valuable insights and guidance based on her extensive knowledge of diamonds.

Report Verification

Gemma Antonini’s Report Verification service ensures the accuracy and authenticity of gemstone reports, drawing on her 25 years of expertise as a certified gemologist.

Gemstone Identification

Utilizing state-of-the-art equipment and her extensive knowledge, Gemma conducts thorough examinations to determine the authenticity, characteristics, and value of gemstones.

Gemstone Grading

With meticulous attention to detail, Gemma employs a comprehensive grading process, evaluating factors like color, clarity, cut, and carat weight to provide accurate assessments of gemstone quality