’s pearl earrings might hold significant symbolism as she undergoes cancer treatment. On Friday, June 14, the Princess of Wales, 42, shared an update on her health in a statement shared via Instagram by Kensington Palace, which included standing by a tree on the Windsor estate. Along with a pair of dark wash jeans and a tan, pinstripe sports coat, Kate’s Annoushka pearl earrings (officially labeled the Baroque Pearl Earring Drops) stood out against her brown tresses.

Elegant and understated, she has worn these earrings to public events since 2012. According to jewelers at , pearls are “often associated with good luck” and are “seen as a symbol of turning something negative into something positive” because of its “unique formation,” wherein an “irritant inside a mollusk shell transforms into a beautiful gemstone.” In her health update, Kate shared that she was “making good progress” in her treatment for an undisclosed form of cancer.

“I have been blown away by all the kind messages of support and encouragement over the last couple of months. It really has made the world of difference to William and me and has helped us both through some of the harder times,” Kate shared in her statement on Friday. “I am making good progress, but as anyone going through chemotherapy will know, there are good days and bad days,” she continued.

“On those bad days you feel weak, tired and you have to give in to your body resting. But on the good days, when you fee.