White Zeus Silestone Cost . It’s the perfect choice for any space. Silestone slabs are 50 to 100 per square foot while labor is 10 to 40 per square foot. White Zeus Silestone Quartz Countertops, Cost, Reviews from www.igscountertops.com These are the three most popular options for white kitchens. White zeus silestone is a combination of natural quartz and other raw materials that are extraordinarily hard and resilient. This model is available in silestone colours blanco zeus, eternal calacatta gold and tigris sand.