Brilliance Perfected: The Art of Polished Diamonds

At Firma Tera, every polished diamond is a masterpiece of precision and craftsmanship. Each stone is cut to exact proportions, maximizing brilliance, fire, and scintillation, ensuring that every diamond meets the highest global standards.

Why Choose Firma Tera Polished Diamonds

  • Exceptional Craftsmanship: Our diamonds are polished by skilled artisans to enhance fire, brilliance, and symmetry.

  • Certified Quality: Each polished diamond is graded and certified according to international standards, ensuring clarity, color, cut, and carat accuracy.

  • Wide Selection: We offer a variety of cuts, sizes, and styles to meet the needs of jewelers, investors, and collectors.

  • Ethical & Transparent: Just like our rough diamonds, every polished diamond is conflict-free and fully traceable.

Tailored Solutions for Every Client

Whether you are sourcing for retail, investment, or bespoke jewelry, Firma Tera provides detailed specifications, high-resolution imagery, and expert guidance to help you choose the perfect polished diamonds.

The Firma Tera Promise

With Firma Tera, every polished diamond is more than a gem—it is a trusted, certified, and ethically sourced asset. We combine global expertise with personalized service to help you shine with confidence.

Certified Brilliance You Can Trust

Every polished diamond is independently graded by world-recognized laboratories (GIA, HRD, IGI), ensuring complete confidence in color, clarity, cut, and carat weight.

Certificates available for every diamond

Laser inscription options for verification

Digital documentation for easy records

Precision in Every Facet

At Firma Tera, polished diamonds aren’t just finished stones — they’re the pinnacle of human craftsmanship and natural beauty. Each diamond is cut to exacting proportions, maximizing brilliance, fire, and scintillation.

  • Advanced cutting technology combined with artisan expertise

  • Strict quality control at every stage of production

  • Attention to symmetry, polish, and light performance

 

A Portfolio for Every Requirement

Our inventory serves jewelers, manufacturers, and investors seeking stones of every size, shape, and quality.

  • Full range: rounds, fancy shapes, matched pairs

  • Consistent assortments for large-scale production

  • Rare and investment-grade diamonds available