According to the information I have learned, the price of Turpan grape seed 300 yuan is really high. Generally speaking, the price of grape seeds in Xinjiang market ranges from 20 to 60 yuan per kilogram, so the price of Turpan grape seeds in 300 yuan may be a bit expensive. However, the specific price may vary due to market supply and demand, quality, origin and other factors. If there is a purchase demand, it is recommended to consult the latest quotation through formal channels.