The Official Website of
The British Gemmological Institute (BGI)

An Independent Laboratory Accredited by the UK Government’s Dept. of Trade & Industry (DTI)

“Dedicated to creating trust and reliability”

Here are some of the BGI Laboratory’s professional services:

• Diamond grading using Official International Master Stones
• Valuations and Insurance Assessment
• Jewellery & Gemstone Testing
• A Fair, Independent and Impartial opinion
• Investigates cases of suspected fraud
• Recovery of stolen assets around the world
• Spectrometer Testing for Synthetic & Simulated diamonds
• Tests carried out by BGI gem experts
• Educational programmes or tuition courses
  by appointment