Lab Grown Diamond Manufacturer Real factory base in China


50000+ Stock CVD Diamonds and HPHT Diamonds With IGI Certificate At Competitive Prices to Save Your Cost!

Old European Cut Lab Diamond and Old Mine Cut Lab Diamond Are Available

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Why Lab Grown Diamonds?

Antique Cut Lab Diamond 


The Antique diamond cut is popular for retro jewelry. Retro is a fashion. Retro engagement rings are even more fashionable. Compared with the traditional diamond cut, the Antique cut is also a good choice. The Antique-cut diamond engagement ring will bring you a special brilliance through its uniqueness and authenticity. we have Old European Cut and Old Mine Cut lab grown diamonds in stock,  Antique cut CVD diamond we also can do custom, such as oval shape, pear shape , heart shape , marquise shape... 


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Our Service

  • Strict Quality Control

    In our factory, we have strict quality control on each process . All our products get quality tested before shiping to customer’s hand. We guarantee our customer’s satisfaction in every way!

  • Fast and safe shipping

    1-2working days for stock. Shipping by express for 3-7days! we will follow the shipping information, then will remind the customers to receive the package

  • No insurance, no disclosure, no fear

    Tianyu Gems are conflict-free. We can keep all your business private – whether it’s a large order or a special design.

  • Reply within 4 hours

    Once you leave the message, our team will usually reply you within 4 business hours. One-On-One professional service

How do we grow your business?


    • We have 50 high skilled workers with over 10 years' experience, and advanced equipment to ensure that any of your custom needs are met

    • Over 50,000 CVD diamonds in stock, fast delivery, no pressure on stock. 

    • Free design service to ensure every detail of your lab diamond jewelry. Your One-Stop Shopping for lab diamond Jewelry

    • With over 20 years experience and professional trade team, we are right here to offer you the best service, deliver top-quality and security.





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Design your own style and start at any budget.

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