Unverified88% confidenceDecision RuleTime unknown
买珠宝首饰认准权威鉴定证书：钻石看GIA/IGI/NGTC，翡翠看NGTC/GTC，彩宝看GRS/古柏林；同时核对证书编号与实物腰码是否一致，避免证书张冠李戴
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified钻石类鉴定认准GIA、IGI、HRD等国际证书，国内GTC/NGTC证书适合彩宝翡翠，购买裸钻务必核对证书激光腰码与钻石实际刻字一致，防止证书与货品调包87% similarUnverified天然宝石认准权威证书：钻石看GIA/IGI，翡翠看国检NGTC，彩色宝石看GRS/Gübelin，证书上'处理/优化'字样（如B货、注胶、辐照）大幅降低价值86% similarUnverified购买无证书或仅有商家自出证书的钻石不可取，天然钻石认准GIA/IGI/NGTC证书，且需核对证书激光腰码与实物一致82% similarUnverified购买天然钻务必认准GIA或国内NGTC证书，1克拉及以上尤其要有独立第三方鉴定；商场无证书或仅有店铺自出证书的钻石溢价高且难转手82% similarUnverified证书类型区分：黄金看检测证书（如国检NGTC），钻石看GIA/IGI，但定制饰品的整体证书多为出具方自检，仅证明材质不证明工艺，认准检测机构CMA/CNAS资质章81% similar
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