The song "Diamond" by JONY talks about a girl who shines like a diamond and how the singer is mesmerized by her. The singer is unable to say goodbye to her despite the fact that she is not meant for him. The girl has weekends every day and is not an angel, but she shines brightly like a diamond. The singer has tolerated all of her friends and thought that her sincerity could not be bought. However, he later realizes that she has a price, and her secrets become evident. He is saddened by the fact that he fell in love with such a cruel and heartless girl. The song also talks about how the girl wears expensive brands like Gucci and Prada, and her crown is made of stars. Even though the singer can see himself in her, he knows that she is not meant for him. The chorus of the song repeats how the girl shines like a diamond and how the singer cannot say goodbye to her even though she is not for him. He is mesmerized by her and her aura. Overall, the song "Diamond" talks about unrequited love and the pain of not being able to let go of someone, even though they are not meant for you. It is a beautifully crafted song with emotive lyrics and captivating music.