Diana A modern plate with a unique mineral effect, taking you back to nature. Diana will enhance your table with its unique matt, black appeal. Elegant and modern, yet sophisticated, you’ll be surprised how well it works for any occasion. It comprises 25 cm dinner plates, 20 cm deep plates and 18 cm dessert plates. Made from tempered glass, Diana is highly resistant to chipping and is suitable for use in the dishwasher and microwave.