Gemological Identification Laboratory

40, Burtolla Street, 1st Floor, Kolkata - 700 007

Near Visudhanand Hospital & Research Institute

Phone: Office - +91 98366 54497

Basu Gupta - +91 93318 25533

Rahul Gupta - +91 96819 22881

Anitabh Gupta - +91 93312 30089

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