Gemological Certification

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High-quality gemstones All of our Gemologists are graduates of the Gemological Institute of America (GIA)...

Since its inception in 1908, the Gemmological Association of Great Britain (Gem-A) has been at...

Quality gemstone jewellery Highly experienced and qualified in-house gemologists, lapidaries and jewellery designers, Holts Lapidary...

At IDRC, we understand the value of peace of mind when it comes to your...

In the bustling heart of Hatton Garden, where competition is rife, one establishment stands out...

International jewellery valuation service International expert jewellery valuation, offering professional expert gemological certification services on...

All About

Gemological Certification

Gemological certification is an essential process that confirms the authenticity and quality of gemstones. This thorough analysis offers crucial information about the gemstone and builds confidence in its value.

Understanding the Certification Process

The certification process involves a detailed examination performed by trained gemologists using advanced equipment. These experts assess each gemstone for important qualities, such as carat weight, cut, clarity, and colour, as well as any treatments or enhancements. The process is unbiased, ensuring an accurate and reliable report on the gemstone’s characteristics.

The Importance of Reputable Gemological Laboratories

Obtaining a certificate from a well-known gemological laboratory is crucial for establishing a gemstone’s credibility and value. Internationally renowned laboratories such as the Gemological Institute of America (GIA), the American Gem Society (AGS), the European Gemological Laboratory (EGL), and the International Gemological Institute (IGI) are known for their high standards and expertise in gemstone evaluation.

In Hatton Garden, London, you can also find British gemological laboratories that provide exceptional certification services. The London Diamond Bourse (LDB), The Gemmological Association of Great Britain (Gem-A), and the World Gemological Institute (WGI) are examples of reputable institutions that offer expert gemstone analysis and certification. These esteemed British laboratories, along with the globally recognized IGI, cater to the needs of discerning clients, providing peace of mind to buyers and collectors by confirming the gemstone’s quality and authenticity.

The science of gemology

Gemologists use their expertise and various tools, techniques, and equipment to examine and classify gemstones based on their physical and optical properties. These properties include hardness, density, refractive index, dispersion, cleavage, and specific gravity, among others.

Gemology also encompasses the study of gemstone treatments, enhancements, and synthesis techniques, as well as the examination of their impact on the overall value and quality of the gemstones. The study of gemology enables professionals to distinguish between natural, treated, and synthetic gemstones, and helps them accurately determine their origin and value.