Rosewood is generally more expensive than sandalwood. This is due to several factors, including its rarity, the demand for its unique properties, and the legal restrictions surrounding its trade. Rosewood is a highly sought-after wood due to its rich color, durability, and the ability to produce a deep, resonant sound when used in musical instruments. The CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) lists many species of rosewood as endangered, which has significantly reduced the supply and driven up prices.

Sandalwood, on the other hand, is also prized for its aromatic oils and is used in perfumery, incense, and traditional medicine. It is less rare than rosewood, but its prices can still be quite high, especially for high-quality, aromatic sandalwood oil. However, the demand for rosewood often outpaces that for sandalwood, leading to higher prices.

According to a report by the International Union for Conservation of Nature (IUCN), the price of rosewood can be up to 10 times higher than that of sandalwood. This discrepancy is partly due to the fact that rosewood is more difficult to source legally and sustainably. The illegal logging and trade of rosewood have been significant issues, leading to a black market that drives up prices even further.

In addition, the cultural significance of rosewood in certain regions, such as Asia, where it is used in traditional furniture and art, also contributes to its higher value. While sandalwood is also culturally significant, its uses are more varied and less exclusive, which can lead to a more stable market and lower prices.

In conclusion, rosewood is typically more expensive than sandalwood due to its rarity, demand, and legal restrictions. The unique properties and cultural significance of rosewood, combined with the challenges of sustainable sourcing, make it a more valuable commodity in the market.