[Reference price: ¥55,000] [Size:49□20-144】 A crown panto design that was popular in France from the 40s to the 50s. Since the center of gravity has been lowered slightly, the overall balance has been rebalanced to create a design that is familiar to the user. The review of the metal press processing, which was carried out to reduce the burden on the lens, reflects the brand's philosophy of not cutting corners even in areas that are invisible to the naked eye. The name of the frame, Diadema, comes from the headband, which is the origin of the crown.