Rosewood is generally more expensive than sandalwood and redwood. This is due to its rarity, cultural significance, and the demand for its use in high-end furniture, musical instruments, and carving. Sandalwood, while also valuable, is less expensive than rosewood due to its more abundant supply and less exclusive use. Redwood, on the other hand, is a common timber used in construction and is the least expensive of the three.

The price of rosewood can vary widely depending on the species and the country of origin. For example, Brazilian rosewood (Dalbergia nigra) is one of the most expensive types, with prices reaching up to $10,000 per cubic meter. This high price is driven by the wood's exceptional durability, rich color, and unique grain pattern, which make it highly sought after for luxury furniture and musical instruments. The International Union for Conservation of Nature (IUCN) lists Brazilian rosewood as critically endangered, which further contributes to its high value.

Sandalwood, particularly Indian sandalwood (Santalum album), is also highly valued for its aromatic oil, which is used in perfumery and incense. However, it is less expensive than rosewood due to its more widespread availability. The price of Indian sandalwood can range from $1,000 to $3,000 per cubic meter, but this can vary based on the quality and the market demand.

Redwood, specifically the California redwood (Sequoia sempervirens), is a common timber used in construction and other applications. It is less expensive than both rosewood and sandalwood due to its abundance and the fact that it is not as highly valued for its aesthetic or aromatic properties. The price of redwood can vary, but it typically ranges from $200 to $500 per cubic meter.

In conclusion, rosewood is the most expensive of the three woods, followed by sandalwood, and then redwood. This ranking is primarily due to the rarity and cultural significance of rosewood, as well as the demand for its use in luxury products. Sandalwood is less expensive due to its more abundant supply and less exclusive uses, while redwood is the least expensive due to its common use in construction and other applications.