Gemological Institute of Genoa, the most beloved by surfers, presents: Gemology contest for prizes! Give 50 right answers to 50 questions in order to win a real half-carat natural Diamond with these features: H Color, Clarity Vs1 and Very Good Cut Enter the answers into the comments section below The Gemological Institute of Genoa will reward the first one who will exactly answer the 50 questions in the 50 videos of the playlist Gemology Contest A Scapolite B Ruby Verneuil C Glass D Pezzottaite