Ironwood is generally more expensive than rosewood. This is due to several factors, including the rarity and demand for ironwood, as well as its unique properties and uses. Ironwood trees are known for their extremely dense and durable wood, which makes them highly sought after for construction and furniture-making. Rosewood, on the other hand, is prized for its rich color and grain patterns, which are highly valued in the luxury furniture and musical instrument markets.

Data from the International Tropical Timber Organization (ITTO) indicates that the price of ironwood can vary significantly depending on the species and region. For example, the African ironwood (Olax caput-medusae) can cost upwards of $500 per cubic meter, while the Asian ironwood (Eusideroxylon zwageri) can reach prices of $1,000 or more. In contrast, rosewood prices can also be quite high, but they typically fall below those of ironwood. The most expensive species of rosewood, such as Dalbergia rubra, can cost around $1,000 to $1,500 per cubic meter.

The rarity of both ironwood and rosewood contributes to their high prices. Both species are often found in tropical regions, where they are threatened by deforestation and illegal logging. The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) has listed several species of rosewood as endangered, which has further driven up their value. Ironwood, while not as heavily regulated, is also subject to trade restrictions in some countries.

The unique properties of ironwood and rosewood also play a role in their pricing. Ironwood is known for its exceptional strength and durability, making it ideal for heavy-duty construction projects and furniture that requires long-lasting materials. Its high density also makes it difficult to work with, which can add to the cost of labor and production. Rosewood, on the other hand, is prized for its aesthetic qualities, which are highly sought after in the luxury market. The rich color and grain patterns of rosewood make it a favorite for high-end furniture, musical instruments, and decorative items.

In conclusion, ironwood is generally more expensive than rosewood due to its rarity, demand, and unique properties. While both species are valuable, the specific uses and characteristics of each contribute to their respective prices.