Early Booking Discount : Get Up To 15% Off This Summer On All European Destinations Of Diamond Resorts And Hotels. Stay Vacationed this summer with Diamond Resorts and Hotels. We are pleased to offer you the fantastic choice of European holiday destinations. Be super savvy and book your holiday early to bag yourself a bargain with a fantastic 15% off. Terms & Conditions: Valid for bookings until 31st August,2016. Valid for stays until 31st May, 2017.