Professional Gemological Services

Expert gemstone identification, appraisal, and certification by certified gemologists

Our Services

Professional identification of precious and semi-precious stones using advanced gemological equipment

Accurate valuation of gemstones for insurance, estate, or resale purposes

Official certification and documentation of gemstone authenticity and quality

Comprehensive analysis of cut, color, clarity, and carat weight following GIA standards

Explore our comprehensive appraisal services, including insurance, fair market value, verbal consultations, and buyer's advisory.

Hello, my name is Rafael Ferreira, and I am the founder of Mineral Gemstones...

GIA Certified Gemologists

Advanced Testing Equipment

International Standards

Learn about Cut, Color, Clarity, and Carat Weight - the universal standard for diamond quality.

Discover the world of precious stones, including sapphires, rubies, and emeralds.

★★★★★

Exceptional expertise. Rafael explained every detail of my diamond and gave me total confidence in the purchase.

Mariana S. — Engagement Ring

★★★★★

Professional appraisal delivered fast and clearly documented. Perfect for my insurance provider.

Daniel R. — Insurance Appraisal

★★★★★

We verified a family emerald and learned its history. Honest, transparent, and very knowledgeable.

Lucia A. — Heirloom Evaluation

★★★★★

Great buyer’s advisory. Saved me from overpaying and found a better stone that matched my goals.

Brian K. — Buyer’s Advisory

★★★★★

The education content is outstanding. I now understand the 4Cs and feel secure investing in gems.

Patricia M. — Education Session

Have a question or need a consultation? Contact us today!