Level 1 -YY sorcerer's stone

Level 2-Nice YY Philosopher's Stone

Level 3-dusty YY sorcerer's stone

Level 4-Excellent YY Philosopher's Stone

Level 5-Colored YY Philosopher's Stone

Grade 6-Crystal YY stone

Level 7 -YY Dawn Stone

Level 8-Dream YY Stone

Level 9 -YY stone, full of the sky

10- Perfect YY stone

1 1 grade-the legendary YY stone

12-dark YY stone

13- Miracle YY stone 14- Holy YY stone 15- God YY stone.