Lab Grown Diamond Manufacturer Real factory base in China


Professinal Friendly service, Quality Assurance, Competitive price, Fast delivery

All lab Grown Diamonds With IGI Certificate

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Why Lab Grown Diamonds?

Very reliable seller, delivery what they promised! I've bought 


from several sellers who sells moissanites and lab diamonds. 


Tianyu went beyond and above to cut a gorgeous diamond for


 me. Their customer service and craftmanship are superb. 


I'm very pleased with my ring. Thank you so much Tianyu,


you're the best!! 


--- Angelina Dyck

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 30 high skilled workers with more than 10 years' experience, and advanced equipment to ensure that any of your custom needs are met

    • Bulk stocks with IGI certificate at competitive prices to save your cost!

    • Free design service from us, and we will design the best lab diamond jewelry for you. Your One-Stop Shopping for lab diamond Jewelry

    • With more than 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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