Unverified82% confidenceDecision RuleTime unknown
工艺精细度看背面：优质胸针背面焊点平整无毛刺、镶爪均匀包裹宝石；廉价品常见焊接痕明显、爪镶松动，宝石易掉
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82%
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Long-term
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Unverified工艺精细度看背面：好胸针背面焊点平整无毛刺、镶爪均匀包裹宝石、活动部件（如颤枝/弹簧）顺畅；地摊货往往正面光鲜背面焊点粗糙、宝石松动94% similarUnverified工艺精细度看背面：正品好胸针背面焊点平整、针扣与主体一体成型；廉价品背面焊疤明显、针托用胶水粘接易脱落89% similarUnverified工艺精细度看焊点与镶嵌：优质胸针背面焊点平滑无毛刺、爪镶宝石逐颗独立固定不松动；廉价品多用胶粘钻(glue-set)，遇高温或碰撞易脱落，可轻摇听是否有响声判断88% similarUnverified工艺精致度看背面：优质胸针背面同样电镀处理无毛刺，扣针为不锈钢或黄铜（不易生锈），焊点平整无溢胶；镶钻款优选爪镶而非胶粘，胶粘钻半年内易脱落88% similarUnverified工艺精细度看背面：正品做工背面针托焊接平整、无毛刺、有品牌钢印；廉价款背面焊点凸起、有胶水溢出痕迹，长期佩戴易脱落87% similar
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