Pearls are the only gems made within a living animal, and are also the oldest jewels known to man. Since ancient times, pearls have been symbols of purity, innocence and perfection, donned by royalty and wealthy nobles.
A fragment of the first known pearl jewelry, now on display at the Louvre in Paris, was found on a 2,000-year-old sarcophagus of a Persian princess.
A Stella McCartney sketch of a custom dress made from protein-based silk in partnership with biotech lab Bolt Threads. The dress will be displayed at The Museum of Modern Art's upcoming design exhibition, "Items: Is Fashion Modern?"