About Us

Established in 2007, SGL is a British diamond certification and authentication laboratory that is headquartered in London. We are one of the fastest growing international laboratory, spanning 5 countries, 23 locations, and 198 geo-footprints countries worldwide. SGL has been at the forefront of Natural Diamonds as well as Lab Grown Diamonds classification and identification and contributed passionately towards creating awareness on the subject.

PEACE OF MIND, ASSURED

Established in 2007, SGL is a British diamond certification and authentication laboratory that is headquartered in London. We are one of the fastest growing international laboratory, spanning 5 countries, 23 locations, and 198 geo-footprints countries worldwide. SGL has been at the forefront of Natural Diamonds as well as Lab Grown Diamonds classification and identification and contributed passionately towards creating awareness on the subject.

All laboratory gemologists have a scientific and gemological education and work on a high level of experience and integrity. The laboratory is equipped with the most modern analytical instruments. This ensures that the authenticity of the diamonds and possible treatments can be tested in the most scientific and reproducible manner with objectivity and expertise ensuring the integrity and accuracy of every analysis and report issued.

House of Perfection

Perfection in its various forms and interpretations , serves as a powerful motivator and a benchmark for excellence. At SGL the pursuit of perfection has lead to remarkable achievements and progression in gemology, instruments and educational services benefiting the trade at large.

House of Accuracy

Accuracy is a fundamental aspect of reliability and trustworthiness. AT SGL we understand the factors that influence accuracy and implement measures to improve it to achieve and maintain high standards of quality, reflecting the same in our diamond and jewellery reports.

House of Quality

Quality differentiates a company from its competitors. At SGL quality refers to the degree of excellence characterized by its ability to exceed customer expectations, leading to increased satisfaction, loyalty, and word-of-mouth recommendations for our diamond and jewellery reports.