The song "10 Carat Love" by Miki Matsubara tells the story of a woman who is tired of waiting and protecting her love. She feels that her love is unattainable, like a 10 carat diamond that sparkles beautifully from a distance but can never be reached. The lyrics depict her reminiscing about past memories with a lover, feeling unappreciated, and longing for the courage to let go of the relationship. The song captures the feeling of unrequited love and the pain of longing for someone who seems out of reach. It conveys a sense of resignation and acceptance that despite her deep love, she may never be able to attain the love she desires.