Does All Jewellery Tarnish? A Guide to Caring for Your Precious Keepsakes Your breastmilk jewellery is more than just a piece of jewellery. It is a precious keepsake, designed to hold memories close and be treasured for years to come. Like all jewellery, however, the metal used in your piece can change over time. One of the most common questions we receive is: will my jewellery tarnish? The simple answer is that some metals are more prone to tarnishing than others and each me