The school courses enable students to take the certification of Fellow of Gemmological Association (FGA) examination of the United Kingdom.
The GII is recognized by CIBJO which is an international confederation of jewellery trading industry that harmonizes standards set by gem testing laboratories.
With increasing consumer awareness, the jewellery industry worldwide began to issue certifications to attest the quality of gem and diamond products.
In October 2005, The GII acquired 4,500 square feet (420 m2) of premises at Sukh Sagar Building at the Opera House to expand its diamond grading laboratory Services.
In 2006, the GII tied up with Panjab University, Chandigarh as a research center for Ph.D. Studies in the field of gemstones and diamonds.