リリス illustration by DISH フィギュアの高価買取価格

The item you're referring to appears to be a collectible figure of Lilith (リリス), possibly from a series or a specific collaboration involving DISH, a Japanese band known for their music and artistic collaborations. The "extra 1/6" suggests that this figure is a 1/6 scale model, which is a common size for collectible figures.
If you're looking for specific information such as pricing, availability, or where to purchase this figure, I recommend checking specialized hobby shops, online retailers such as Amazon or eBay, or specific figure collector websites. Additionally, fan communities and forums can provide insights and reviews about the figure.