Giant Lab Diamonds 101

Quality & Size Guarantee

1. What can I expect from your diamonds?
Every diamond we sell is a curated and vetted as the best of the best, best color, cut, quality, and all backed by independent IGI Certificates:
- 3 Ct will be between 3.0 and 3.15 carats

- 5 Ct will be between 5.0-5.10
- D  E  F color (near colorless) Guaranteed
- VS-VVS clarity near flawless  
- Ideal or Excellent cut, ensuring maximum brilliance, sparkle and fire

- Every now and then we make available our private collection of Hearts & Arrow Stones. 

2. Why do you only sell 3 & 5 carat diamonds?
Short answer, because we are GIANT LAB DIAMONDS

By focusing on these BIG sizes, we can curate the most stunning diamonds and increase our buying power, curating and accepting only the finest cut stones. This streamlined approach helps us cut unnecessary costs and pass the savings directly to you. 

That’s how we’ve created our industry-first FLAT PRICE model, offering exceptional diamonds at a single, unbeatable price, while ensuring only the absolute BEST QUALITY DIAMONDS.

IGI Certified 

3. Are your diamonds certified?
Yes! Every diamond is graded and certified by leading gemological institutions IGI Certification. These reports are created by the top gemologist institute under the strictest requirements and include all the details of the diamond’s history, quality and authenticity. Every GIANT LAB Diamond is accompanied by it's unique numbered Certificate and IGI number inscribed in the girdle.

https://www.igi.org/lab-grown-diamonds/

https://www.igi.org/verify-your-report/

4. Are lab-grown diamonds real?
YES. 100%, Lab-grown diamonds are just as real as ones dug out of the ground. Same sparkle, same density, brilliance, characteristics—just made in a lab instead of nature.

5. How are they made?
We grow diamonds using cool science: either by mimicking the earth's pressure and heat or by growing them layer by layer with carbon gas. It’s like farming diamonds, but without the dirt.

6. Are lab-grown diamonds conflict-free?
Absolutely! These diamonds are drama-free. No unethical mining or questionable practices—just clean, clear diamonds you can feel good about.

7. Are they sustainable?
Yep! Lab-grown diamonds are way easier on the planet than mining. They use fewer resources and don’t leave behind any holes in the earth. Plus, we’re always working to keep things as green as possible.

Ethical Sustainability

8. Why should I pick a lab-grown diamond?
They’re kinder to the planet and your conscience. No mining, no middlemen, and no guilt—just stunning diamonds that look and feel amazing.

9. What’s your company doing for the environment and the world?
We’re all about being green. From using renewable energy to ethical sourcing of materials, we make sure every step is planet-friendly. Plus, we donate a portion of every sale to organizations and charities that promote human rights and fair labor practices in conflict regions. Your purchase helps make a positive impact.

Shipping & Returns

10. How will my order be shipped?
We ship every order via FedEx, safe and sound. Your package is fully insured and usually gets to you in 2-5 days. Need it faster? We’ve got overnight shipping for an extra fee.

11. What if I need to return it?
No worries! If you’re not happy, we’ll take it back.  

12. What if I get the 3 Ct and then decide I want to upgrade? No worries! Upgrade anytime. Just pay the difference.

​Payment & Care

12. What ways can I pay?
We accept all the usual payment formats including credit cards, Venmo, PayPal etc

13. How do I take care of my diamond?
Keeping it shiny is simple: warm water, a little dish soap, and a soft brush will do the trick. These diamonds are tough and ready to sparkle for life.​

Support

14. How can I get help?
We’re here for you! Reach out by email, phone, or live chat. We’ll answer all your questions and help you find the perfect diamond.

If you’ve got more questions, we’re always happy to help.