Don't drop it According to Swarovski official website's inquiry, the black swan necklace is made of crystal and colored gold, which will not fade when it meets water and will lead to oxidation, so it needs shelter from the rain, so the black swan will not fade when it rains. Black Swan Necklace is a high-end jewelry launched by the famous crystal brand Swarovski, which is famous for its exquisite craftsmanship and unique design.