24 pure gold and is 1/2 oz. PLEASE NOTE THESE ARE 24% GOLD AS MARKED. The item "2015 Cook Islands $25 Liberty 1/2 Ounce. 24 Pure Gold Collector Coin No Reserve" is in sale since Monday, April 13, 2020.This item is in the category "Coins & Paper Money\Bullion\Gold\Coins".inc" and is located in Kerrick, Minnesota. This item can be shipped to United States.