Frequently Asked Questions
About Us
What is a lab-grown diamond and is it real?
Lab-grown diamonds are real diamonds created in advanced laboratory conditions that replicate the natural diamond-growing process. At 4CGrownDiamond, our lab-grown diamonds have the same physical, chemical, and optical properties as mined diamonds, making them indistinguishable to the naked eye.
Why are lab-grown diamonds more affordable?
Lab-grown diamonds are more affordable because they eliminate the need for costly mining operations and long supply chains. At 4CGrownDiamond, we further reduce costs through direct manufacturing and efficient operations, allowing us to offer high-quality diamonds at significantly lower prices.
Are lab-grown diamonds certified?
Yes, all our diamonds are certified by reputable institutions such as the Gemological Institute of America (GIA) or equivalent grading organizations. This ensures that every diamond meets strict standards for quality and authenticity.
Where is 4CGrownDiamond located?
4CGrownDiamond is based in New York City, with an office on Fifth Avenue. Our corporate office is located in the Diamond District at 55 W 47th Street, Suite 790, New York, NY 10036, United States. Visits are available by appointment.
Do you offer shipping and returns
Yes, we offer free shipping on orders over $500. We also provide a 7-day return policy to ensure customer satisfaction. Our online-first model allows us to deliver premium diamonds efficiently and securely worldwide.
Do you have expert gemologists?
Yes, our team includes trained professionals from the Gemological Institute of America (GIA). They ensure quality control and are available to assist customers with any diamond-related questions.
Insurance & Care
Do you offer jewelry cleaning or maintenance services?
At 4CGrownDiamond, we focus on delivering high-quality lab-grown diamond jewelry at the most competitive prices. For this reason, we do not offer in-house cleaning or maintenance services.
However, we recommend having your jewelry professionally inspected and cleaned by a local jeweler to maintain its brilliance and durability over time.
How often should I service my diamond ring?
To keep your jewelry in optimal condition, it is recommended to have your ring inspected every 9–12 months. Professional maintenance helps ensure that prongs remain secure and prevents diamonds from becoming loose or falling out.
What does your jewelry warranty cover?
Our warranty covers manufacturing defects upon delivery. Within 7 days of purchase, we offer services such as:
- Fixing loose prongs
- Polishing
- Rhodium plating
If you experience any issues, please contact us and our team will assist you promptly.
What if my issue is not covered under warranty?
If your concern falls outside our warranty coverage, you can still contact us. We will evaluate your jewelry and provide a quote for repair or maintenance services.
Orders & Ring Sizes
Can I try a ring before I buy it?
While we operate primarily online, we offer a 7-day money-back guarantee. This allows you to try your ring at home and return it if it doesn’t meet your expectations.
Can I order diamond jewelry online?
Yes, you can securely place orders directly through our website. All available products are listed online, making it easy to browse and purchase lab-grown diamond jewelry from anywhere.
Can I customize an engagement ring?
Absolutely. We offer custom engagement ring design services. You can share your ideas with us, and our team will create a unique design tailored to your preferences.
How do I reserve a diamond for a custom ring?
If you find a diamond you love, we recommend purchasing it first and sharing your order number with us. This allows us to reserve the diamond while we prepare your custom CAD and 3D design, which typically takes up to 2 days.
What if I need help placing an order?
Our support team is available 24/7 via live chat on our website. We’re always ready to assist you with your order or answer any questions.
Can I change or cancel my order?
Yes, if you need to modify or cancel your order, please contact us as soon as possible via live chat or email. Our team will guide you through the process.
Our Diamond & Jewelry
Why are your diamonds and jewelry so affordable?
At 4CGrownDiamond, we offer competitive pricing because we operate as direct manufacturers. Our diamonds are sourced directly from our own production and trusted partner factories, eliminating middlemen and unnecessary markups.
This allows us to provide high-quality lab-grown diamonds and fine jewelry at significantly lower prices compared to traditional retailers.
Why do similar diamonds have different prices?
Even if two diamonds have the same cut, color, clarity, and carat weight, their prices may still vary. This is because pricing can differ between manufacturers and suppliers.
At 4CGrownDiamond, we work with multiple partners and offer access to over 950,000+ certified lab-grown diamonds. Lower prices do not mean lower quality — all diamonds meet strict certification standards.
Do you offer a low price guarantee?
Yes, we offer a low price guarantee. If you find a diamond or jewelry item of the same size and quality at a lower price elsewhere, simply share the reference link with us — and we will match or beat the price.
How accurate is a diamond price calculator?
It provides an estimate based on market averages. Actual prices may vary depending on specific diamond characteristics.
Are lab-grown diamonds cheaper?
Yes, lab-grown diamonds typically cost 30%–70% less than natural diamonds of similar quality.
What affects diamond price the most?
Carat weight and cut quality usually have the biggest impact on price.
Lab Created Diamonds
Are lab-grown diamonds the same as natural diamonds?
Yes, lab-grown diamonds are physically, chemically, and optically identical to natural (earth-created) diamonds. They have the same brilliance, hardness, and sparkle, making them indistinguishable without specialized equipment.
Do lab-grown diamonds come with certification?
Yes, all our lab-grown diamonds come with independent certification from leading laboratories such as GIA, IGI, or GCAL.
Each report includes the diamond’s 4Cs:
- Cut
- Color
- Clarity
- Carat weight
For GIA-certified diamonds, a digital report is available online, and printed certificates are also available upon request.
Why don’t some fancy-shaped diamonds have a cut grade?
Most grading laboratories, including GIA, IGI, and GCAL, do not assign cut grades to fancy-shaped diamonds (such as oval, pear, or radiant cuts). Cut grading is typically only provided for round diamonds.
This is why some fancy shapes on our website may not display a cut grade.
What should I check before purchasing a diamond?
We recommend carefully reviewing the diamond’s certification report before placing your order. Since we source diamonds from multiple manufacturers, listing variations may occasionally occur.
For peace of mind, we offer a 7-day return policy in case you are not satisfied with your purchase.
Payments
What types of payment do you accept?
我们接受PayPal支持的所有付款方式。
如果您有任何疑问或需要付款方面的帮助，请通过我们网站右侧的在线聊天联系我们。
Will I receive a discount if I pay by bank wire?
是的。如需享受折扣，请提前联系我们，并提供您所需的定制钻石详情以及您的电汇收据。收到这些信息后，您即可享受订单折扣。
How to transfer a wire using my bank?
- 道明银行：在应用程序中，点击“汇款”，然后点击“转账”。
- 美国银行： 分步指南
- 富国银行： 登录指南
- 美国银行： 如何通过网上银行汇款
- Capital One： 分步指南
- Chase： 如何首次注册并设置汇款收款人， 如何汇款
- 花旗银行： 应用程序使用说明， 更多信息
Shipping
Do you ship diamond jewelry worldwide?
Yes, we offer worldwide shipping for all lab-grown diamonds and fine jewelry. No matter where you are located, we can safely deliver your order to your doorstep.
How long does shipping take?
Shipping times depend on the product type and shipping method:
Free Shipping:
- Loose Diamonds: Delivery within 2 weeks
- Engagement Rings & Fine Jewelry: Delivery within 3–4 weeks
- Orders under $500: $35 USD shipping fee applies
Express Shipping ($120):
- Loose Diamonds: Delivery within 1 week
- Engagement Rings & Fine Jewelry: Delivery within 2–3 weeks
- Orders under $500: $35 USD shipping fee applies
Can I request faster delivery?
Yes. If you need your order by a specific date or want faster processing, please contact us via live chat or leave a note at checkout. We will do our best to accommodate your request.
Can I track my order?
Yes, once your order is shipped, you will receive tracking details so you can monitor your shipment in real time.
What is included in my shipment?
Your order package includes:
- Your diamond or jewelry item
- A certificate from GIA, IGI, or GCAL
Note:
For diamonds under 1 carat or orders below $2,500, the certificate may be shipped separately.
Are shipments insured?
Yes, all shipments are 100% fully insured, ensuring your purchase is protected during transit.
Are there any shipping restrictions?
- We do not ship to PO Boxes
- Orders are not shipped on weekends or public holidays
Returns/Refund
What is your return policy?
We offer a 7-day return policy on all eligible lab-grown diamonds and jewelry.
The return period begins from the date you receive your order.
Why is your return policy limited to 7 days?
As a direct manufacturer, we operate with minimal margins to provide the most competitive prices. A 7-day return window allows us to efficiently manage inventory and ensure availability for other customers.
Can I cancel my order?
Yes, you can cancel your order as long as it has not been shipped or is still in processing.
Please contact our support team as soon as possible to request a cancellation.
When will I receive my refund?
Once your order is canceled or returned and approved, your refund will be processed within 1–3 business days to your original payment method.
Can I change my shipping address after placing an order?
Yes, address changes are possible before the order is shipped.
Please contact us immediately to update your shipping details.
Are custom or bespoke orders refundable?
Custom-made or personalized jewelry may be eligible for return depending on the case.
Please contact our team for assistance, and we will review your request individually.
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