California Almond varieties are categorized into five broad classifications for marketing purposes based on distinguishing characteristics such as size and shape. The majority of almond production in California falls into the following three major classifications: Nonpareil, California, and MissionCommon Sizes (pieces per ounce)1820, 2022, 2325, 2527, 2730, 3032, 3234, 3436 and 3640Prices are quoted based on grade as well as specification.