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Unverified85% confidenceFactTime unknown

乔治王时期(1714-1837)古董戒指多为封底镶嵌(closed-back setting),宝石背面用金属箔片增强光泽,此类戒指绝对不能沾水,进水会使箔片氧化变黑且无法修复

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85%
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