According to the report, samples were taken to the GIA laboratory in Bangkok and the rough gems were found to be not only of good quality but were also available in large sizes, some ranging from 100 to 300 carats

ambassador, disclosed a new tourmaline mine has also been discovered in the old town of Ile-Ife in Osun state, which is not an area hitherto known for gemstone production.

Nwadike said there are presently three well-known emerald mines in Nigeria, although none has received any significant attention. He said these emerald mines represent huge opportunities