A large teardrop-shaped pink diamond necklace that Xie Zhengnian bought for 100 yuan at the black market as a gift for Qin Nian. It was originally purchased by a boy trying to sell it to pay for his mother's medical treatment. The necklace was actually worth ten thousand yuan. Decades later, a pink diamond of this size would sell for millions. Qin Nian placed it in her space's recycling box and discovered its true value.
