The diamond-shaped machine-made Cabernet Sauvignon glass of the glass Collection heart to heart is the perfect gift. Display them side-by-side and complete the heart of the present boxes for a heartfelt gift. This glass showcases the majestically structured Red wines in all their complexity and finesse. Love wine? Heart to heart presents the pleasure of wine to you at home through functional glasses. All Riedel glasses are dishwasher safe.