News & Events

Dec 2, 2021

The Qingpu District Representative Office and Zhengshi Technology formally signed a cooperation agreement.

Dec 17, 2021

GIA证书如何辨真伪?一文看懂

我们在购买钻石时获取的证书基本上都是来自GIA、HRD、IGI等几家国际权威鉴定机构,其中GIA作为4C等级标准的制定者,以超高公信力与流通性受到业内外人士普遍认可,GIA证书是世界上最权威的钻石鉴定证书之一。我们在收到GIA证书和钻石时如何鉴定证书真假,又如何确保非“套证”?4招教你辨真伪。

Dec 2, 2021

Shanghai Zhengshi Charity Special Fund was formally established

The Qingpu District Representative Office and Zhengshi Technology formally signed a cooperation agreement.

Oct 29, 2021

钻石净度的奥秘

钻石原矿中约二成可作为珠宝,其余八成因不够干净而用于工业用途。征世科技潜心精研MPCVD,净度的优势与生俱来。我们专注于提供更高净度的珠宝级钻石,钻石净度达到VS2以上。秉承专业性、一致性和精确性,践行严苛的钻石评级标准并且拥有GIA、IGI等权威机构认证。

Sep 18, 2021

急救培训课 | 为生命续航,我们在行动!

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