Lab Grown Diamond


Lab diamond is one of the most high-end products in Tianyu Gems. The lab diamonds are IGI certificates and most CVD diamonds can pass the diamond tester. Lab grown diamonds are chemically the same as natural diamonds and are hard to tell apart from them without special instruments to distinguish them.

Moreover, it also has a refractive index almost identical to natural diamonds (2 .41 ~ 2 .42), but the price is cheaper than natural diamonds, which is suitable for the jewelry industry to make high-quality goods, such as rings, necklaces, and so on. As one of the leading manufacturers and exporters of lab diamonds, Tianyu Gems Lab Diamond Factory has its own in-house R&D team to develop exclusive products, focusing on wholesale lab-grown diamonds. With many years of experience in the industry, Tianyu Lab Diamond Supplier provides excellent quality products that are competitively priced, making us a preferred choice among our customers around the world. 

Discover a treasure trove of cultivated diamonds! While not all are showcased on our website, our dedicated sales team will assist you in handpicking the perfect cultured gem for your desires. Contact us today and unearth the brilliance of our exquisite selection!


The target market of our brand has been continuously developed over the years.
Now, we want to expand the international market and confidently push our brand to the world.
  • Regular FAQ
  • Lab Grown Diamond
  • What is the MOQ for customized products?

    For custom jewelry, the MOQ is 1piece; According to different size of gemstone, there are different MOQs, please consult our sales staff for details

  • How long could I get my order?

    3-5 working days to send out for custom moissanite, 15-20 days for custom jewelry, and 1-2 working days for in-stock. And the shipping time usually takes about 3-7 business days by DHL/ FedEx/UPS. Excluding holidays, about 2 weeks in holiday.

  • How long will it take to make a sample?

    7 to 10 days

  • What is the payment method?

    We accept T/T,Paypal , western union and money gram ect.

  • How do you ensure the quality of your products?

    Our products have been designed by professionals, selected materials strictly , quality inspection in each process, and strong packaging.

  • Can I know the status of my order at any time?

    Yes, Please contact our sales team, they will provide you with all the details

  • If I don’t like your loose gems or jewelry ,can i get a refund?

    Yes, for in-stock products, we can do a refund after receiving the return, but for custom products, if it is not a quality issue, it is not refundable. In order to provide customer satisfaction and to let more friends know about Tianyu gems, we have our VIP number discount. We are also upgrading our product packaging, After-sale service, Return Policy, and other related services. Please Contact Us to know more.

  • What is the product ordering process?

    Step 1: Tell us the style, size, shape of product, quantity and payment method you need.
    Step 2: Make PI to confirm order details.
    Step 3: Arrange payment after we confirm your order.
    Step 4: Delivery within the specified time

  • Can I visit your factory?

    Our factory is located in xi huan road, Wanxiu District, Wuzhou City, Guangxi Province. You are warmly welcome to visit.

  • Regular FAQ

    • Lab Grown Diamond

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        The first thing we do is meeting with our clients and talk through their goals on a future project.
        During this meeting, feel free to communicate your ideas and ask lots of questions.

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