World Leader in Grading, Education and Accreditation
With 5 laboratories and 4 schools in India, IDGCL has a workforce of over 500+ experts dedicated to industry service and consumer protection.

Grading & Certification
With many years of expertise, IDGCL grades more diamonds, gemstones and jewellery around the world than any other organisation.
Accreditation
IDGCL is the world’s finest gemological laboratory to hold ISO accreditation in both natural and lab grown diamond grading.
Education
IDGCL’s Schools of Gemology are unrivaled in diversity, reach, and practicality with courses offered in-person and online via eLearning.
ESG
IDGCL is equally committed to all three facets of ESG – focusing on environmental, social and governance matters internally and externally.

IDGCL DIAMOND AND DIAMOND JEWELLERY GRADING
Diamond Grading Report provides an accurate assessment of a diamonds authenticity and quality (cut, color, clarity and carat weight) based on internationally recognized standards.

GET CERTIFICATION
The IDGCL Certificate provides a reliable and accurate documentation of a diamonds identity and grade based on the internationally recognized diamond grading system.

GEM IDENTIFICATION REPORT
This indicates gem variety, type, proportion, weight and includes a full description with a photograph of the gemstone. Quality grading of color for Ruby and Blue sapphire.