The species of walnut may affect its price, along with the taste and quality. Organic walnuts which are inspected throughout its production process and which do not contain any chemicals have a higher price tag. There are special organic nut importers who only deal in these type of products. Where the walnut is produced is another factor affecting the price. Locally harvested walnuts may be cheaper than imported goods. Walnuts without shell are also pricier.