This art called Haydao, it originated in the Song Dynasty (960-1279) in China, and during the Ming Dynasty (1368-1644) was the most popular form of art. Most high-ranking officials in the country were like ornaments.
Most peach pits have all been used as a peach synonymous with salvation in the Chinese culture. Given that each stone is unique, so is the filigree carving figures requires a lot of years of training and patience.
Before cutting out these stories created a drawing that helps, though come to the end result, but it can hardly be a precise plan, due to the changeable structure of peach pits.