This is a work by Takuya Inomata. I purchased it at a pop-up event at Shinjuku Isetan. Opal: 1.5 mm (height) x 1.2 mm (width) Total length including bail: Approx. 2.0 mm Chain: Approx. 45 cm *With slide adjuster The artist likes opals, and from among many works, I chose one with high transparency and beautiful iridescence. You can see a large and beautiful iridescence, similar to a cat's eye, like a rolling flash. It is very lovely and I like it very much, but my circumstances have changed, and I can no longer wear jewelry, especially necklaces, so I am offering it to someone who is looking for it. Metal and chain: K18 The box and certificate of authenticity will be included.