How much is 1kg of silk?

Could you kindly assist me in understanding the market value of silk? I'm particularly interested in the price per kilogram. Could you please enlighten me on the factors that might influence the cost, such as the quality, origin, or any other relevant considerations? Additionally, would it be possible to get an estimate or a range of prices for 1kg of silk in the current market? I'm looking to make a purchase and would appreciate your insights. Thank you for your time and assistance.