GIADJ is the world’s most trusted name in diamond grading and gem identification. With objectivity and expertise, GIADJ ensures the integrity and accuracy of every report it issues. GIADJ tests every material submitted to determine whether it is natural or not, and discloses any treatments discovered during our examination.
Lab Services on Diamonds
We offer our End Clients / Customers very authentic Diamond Certification that will authorize them to evaluate and assess gems and jewelery possessed by them.
Diamond Certification
GIADJ accurately certifies diamonds for the 4Cs – Colour, Clarity, Cut & Carat Weight. Colour grading is done against GIA standard. Mounted diamond jewellery can also be certified and issued with a report. These gradings will be in the form of mounting permits to prevent damage to the jewellery while grading takes place.
Contact GIADJ for accurate, expert, trusted diamond grading and certification.