Product Name: Furuya Stone, Inscription: Kuzuya (Thatched Hut) With Base Origin: Akitsugawa, Tanabe City, Wakayama Prefecture Weight: 6.8kg Size: Width 25cm, Height 18cm, Depth 13cm Description: This is a Furuya stone from Tanabe City, Wakayama Prefecture. In the late Edo period, Furuya stones were designated as "Gome-ishi" (stones reserved for the domain) by the Kishu Tanabe clan, meaning they were off-limits to the general public, and their beauty was considered a treasure of the domain. They are now considered a natural monument. "Kuzuya" refers to a thatched roof, meaning a thatched-roof house. The two cave-like features on the lower right of the front are impressive. This is not a processed natural stone, but rather its natural form, meaning there is no other stone like it in the world. The color is not black, but rather a reddish-brown. Also, the white streaks resemble the snow-covered mountain slopes of the Alps. I believe this shape and size are rare. Furuya stones are given various inscriptions based on their shape. Furuya stones are highly valued not only for their size but also for their appearance, making them very expensive. I researched their value. I referred to items currently listed on Yahoo! Auctions. A 1.28kg stone has a buy-it-now price of 85,000 yen. This is approximately 66 yen per gram. Since this item weighs 6.8kg, it would be approximately 450,000 yen. This is only a calculation based on weight, but please use it as a reference.