The Only Independent Gemological Laboratory in Cyprus

CYPRUS GEMOLOGICAL LABORATORY · INDEPENDENT AUTHORITY SINCE 2000

When you invest in a diamond or a rare gemstone, you deserve more than a seller’s word. The Cyprus Gemmological Laboratory (CGL)—operating independently within the Tsiropoulos atelier—provides rigorous, impartial certification. We protect your investment through internationally recognized authority and scientific precision.

Led by Aris Tsiropoulos, an IGS and CGL certified gemmologist with over three decades of specialized expertise, the laboratory is trusted by private clients, insurers and the trade alike. Our assessments ensure that every jewelry piece crafted in our workshop or brought to us for valuation is verified with absolute integrity.

We utilize advanced diagnostic equipment to confirm the authenticity, origin and quality of every stone. At CGL, we believe that transparency is the foundation of the jewelry industry and we are committed to providing the objective data you need to secure your legacy.

Professional Certification Services: Independent Verification

At Tsiropoulos Jewelry, we provide independent verification for every significant gemstone and jewelry piece. Our objective, scientific approach ensures that your collection is documented with absolute precision.

Natural Diamonds: We provide comprehensive grading, authenticity checks, and provenance verification. Our assessments follow international standards to confirm that your diamonds meet the highest criteria for quality and value.

Coloured Gemstones: We specialize in the identification and analysis of sapphires, rubies, emeralds, and rare stones. Utilizing our advanced gemmological training, we verify origin and detect any treatments to ensure the integrity of your gems.

Fine Jewelry Collections: We offer a full assessment of the metal, stones, and craftsmanship for every piece. Whether it is an item crafted in 18-Karat gold or a bespoke creation, we document the structural integrity and technical execution.

Estate and Inherited Jewelry: We provide detailed valuations and condition reports specifically designed for insurance and estate purposes. Our reports help families preserve the legacy of their heirlooms with a permanent record of their current market value.

The Value of Independent Gemmological Appraisal

A professional appraisal is more than a document; it is a guarantee of security and transparency. We provide expert valuations that serve several critical purposes:

For Insurance: We offer legally defensible valuations recognized and accepted by major insurance providers. Having an accurate record ensures your investment is fully protected in any eventuality.

For Resale: Independent certification significantly increases buyer confidence. By providing an objective assessment of quality, we help you realize the true market value of your jewelry.

For Peace of Mind: Our appraisals allow you to know exactly what you own. As independent experts, we provide a verified analysis with no conflict of interest, ensuring you receive an honest and scientific evaluation.

For Inheritance: We create a permanent record of provenance and quality. This documentation ensures that future generations understand the history and value of the heirlooms crafted in our atelier or passed down through your family.

Discover our expert certification process — available in three languages.

Greek

English

Russian

Certification Pricing

At Tsiropoulos Jewelry, we believe in providing accessible, expert-led verification for your collection. We offer CGL Standard Jewelry Certification starting from €80 per piece.

For a comprehensive list of our laboratory fees, including specialized grading for loose diamonds and estate valuations, please visit our dedicated House Services page.