The Lannoy family tiara is made of platinum and diamonds, 270 old-cut brilliants to be exact. The scrolling natural design includes a few feature stones: a set of larger brilliants, and a large pear shape diamond inverted at the top of the tall center. The design is outlined in tiny platinum gilded pearls. It was made by Altenloh in Brussels, a silversmith and jeweler and former court jeweler to the Belgian royal family.