Non GMO Project verified. nongmoproject.org. About 1 cup. Since 1912. Diamonds nuts are made for homemade when we were started by a group of California. Walnut farmers. Diamond of California was on a mission to bring the bounty from California's Central Valley walnut farms to America's tables. From the beginning, we sought out the very best with the knowledge that Diamond nuts would be used in treasured and new family recipes. Farm to table flavor. Our guarantee of quality. diamondnuts.com. For comments, email us: hello(at)diamondnuts.com. For recipes, visit us: diamondnuts.com.