Baochai wears a golden locket (金锁) inscribed with a motto that matches the inscription on Baoyu's jade — the 'gold-and-jade match' (金玉良缘) the elders favor over Baoyu's love for Daiyu. She is the cool, composed Confucian foil to Daiyu's romantic fire.
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宝钗 = 'precious hairpin'. Where Daiyu is 黛 (eyebrow pigment — emotion inked on the face), Baochai is 钗 (a solid ornament — polished, ornamental propriety).
