Mola mola top only (with a defect) Mola mola: Approximately 16 x 23mm Material: Art Clay Silver (silver clay) (When silver clay is fired, it turns into pure silver, with a purity of about 99.96%) Cubic Zirconia The blue cubic zirconia has discolored, so it is being offered at a reduced price. I didn't test the other colors because they were fine... It appears yellowish under fluorescent light. Thank you for looking.