Vintage brooch, blue china small heart brooch, delft blue jewellery, Dutch delft brooch, hand-made ceramic delft blue brooch, blue floral pattern brooch, royal blue heart brooch, ceramic delft blue pottery brooch with gold lustre tip. Non toxic glaze, brooch back These ceramic heart magnets stand out for their simple, elegant and minimal look! Made with porcelain white stoneware clay which has been three times fired at temperatures between 900-1250 Celsius. The clay has been hand cut whilst still 'leather hard', left to slowly dry over several days which is followed by bisque firing. The pieces are then hand-painted and go through a glaze firing. This whole process takes at least a week to complete. Measurements: Length: 29 mm Width: 29 mm Depth: 7 mm Weight: 6 g ***Please note that due to their handmade nature they will each have their own uniqueness, as no two are the same***