As far as I know, the price of osmanthus trees with a diameter of 10 cm is usually between 10 yuan and 300 yuan, and the specific price will be affected by many factors such as variety, tree shape and height. In addition, the price of these osmanthus trees does not include other related expenses such as transplantation and transportation. If your osmanthus tree is good in shape and variety, the price may be higher.

However, your osmanthus tree was planted in 2003 and has been growing for nearly 20 years. There are hundreds of trees, which may have certain market value. The specific price may need to be evaluated according to market demand, age, height, variety and other factors. It is suggested that you contact the local garden company or plant wholesaler to consult their specific price and market demand for this osmanthus tree with a diameter of 10 cm.