Delhi Gem And Jewellery Institute

2021, Janak Plaza Bank Street, Karol Bagh,
New Delhi,

DHC Institute / DHC Gem Lab

No.89/3, 1st Floor, Sree Complex Avenue Road,
Bengaluru,

GHI India Private Limited

5-C, 5th Floor, Mehta Mahal 15, Mathew Road, Opera House,
Mumbai,

GCI Gemological Center

Sunvile Paper Mill lane Opp. Greens Resturant, Lamington Road,
Mumbai,

European Gemological Laboratory

520-521, Parekh Market 39, Kanedy Bridge, Opera House,
Mumbai,

Deccan Institute Of Gems & Jewellery Private Limited

5-4-746, A Park, Gem Centre Opp. G. Pulla Reddy Sweets, Nampally Station,
Hyderabad,

Gemmological Institute Of India

304 & 503, Sukh Sagar Building N. S. Patkar Marg, Opera House,
Mumbai,

G.S.I. Gems Services International Private Limited

301, 3rd Floor, Prasad Chambers Opera House,
Mumbai,

Gemological Science International

4th Floor, Sanghrajka House Lamington Road,
Mumbai,

Gemological Institute Of Chennai

No.111/8 NSC Bose Road Sowcarpet,
Chennai,