Neel Gems Testing Lab Gems-a word that brings bright smiles with and glitters eyes and deep longing sighs. From an ancient time, there are evidences of gems in the form of precious crude metals and stones were collected and considered to be forms of splendour. Neel Gems Testing Laboratory is famous for testing the quality of gemstones for a long time. Neel desires to expand with the controlled value of gems and to provide 100% customer satisfaction. Neel Diamonds is known for its perfection in testing and certification.