Rosewood is generally considered more valuable than zitan wood. This is primarily due to its rarity, unique grain patterns, and cultural significance in various Asian countries, particularly in China. Rosewood is a highly sought-after material for luxury furniture, musical instruments, and decorative items, with demand often outpacing supply. For instance, the CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) lists certain species of rosewood as endangered, which has further driven up their value due to legal restrictions on trade.

In contrast, zitan wood, also known as sandalwood, is valued for its aromatic scent and durability. It is commonly used in traditional Chinese furniture and incense burners. However, zitan wood is not as rare as rosewood, and its value is often influenced by factors such as the quality of the grain and the craftsmanship of the item. According to a report by the China Wood Association, the price of rosewood can be up to ten times higher than that of zitan wood.

The rarity and cultural importance of rosewood are further highlighted by the fact that it has been used in the construction of iconic pieces such as the Stradivarius violins. The demand for rosewood has been on the rise, with prices increasing significantly over the past few decades. For example, a single piece of high-quality rosewood can fetch tens of thousands of dollars, while a high-quality zitan piece might sell for a fraction of that amount.

Moreover, the legal status of rosewood adds to its value. The international trade of rosewood is regulated by CITES, which has led to a black market for the wood, with prices skyrocketing as a result. In contrast, zitan wood is not as heavily regulated, although it is also subject to trade restrictions in some countries.

In conclusion, rosewood is more valuable than zitan wood due to its rarity, cultural significance, and legal status. The demand for rosewood, driven by its use in luxury items and the restrictions on its trade, has pushed its prices to unprecedented levels. While zitan wood is still a valuable material, its value is generally lower than that of rosewood.