I believe I purchased this around June 2025 for about 2000 yen, but I'm selling it because I haven't had a chance to wear it. I tried it on once at home. The blue part is about 1.5cm long and 1.2cm wide, excluding the gold border. The lower gold ring part is about 3cm long and 2.2cm wide. The backing card is not the one it came with when purchased.