BEWARE AND MAKE SURE TO ASK ABOUT A REAL CERTIFICATE!!!
I ordered one of their solitaire rings that was on sale for a reasonable price. Having very little experience in purchasing jewlery one of the most important points I asked was about the certification. I had read online that they are certified by IGL and IGI and asked on their web chat about it and they confirmed it, so I trusted them and ordered.
When I received the ring it DID NOT include a certificate. When I asked by email about the certificate they sent me a random picture of a dubious "certificate" without any unique number. Furthermore their diamonds DO NOT have markings with a unique number that matches a certificate by a known lab, so there is no way to know that the diamond you buy its legit or rated correctly.
Moreover, the lab they showed a "certificate" from was neither IGL or IGI, it was a completely different "lab" namely ilabs LLC. THIS IS COMPLETELY MISLEADING. When asked about it they said that they never mentioned International Gemology Labs but Independent Gemology Labs. Smart move, the first one being a reputed known company and the second one not.
They continue misleading customers on their website, this is the first result on Google when you search for "New World Diamonds Certification" https://www.newworlddiamonds.com/blogs/news/certified-diamond-education
"Our lab-grown diamonds are certified by various world-renowned, independent laboratories, including the International Gemological Laboratories (IGL) and the International Gemological Institute (IGI). Our .25 carat up to .90-carat weight stones are certified by IGL, while any of our diamonds that are .91 carat weight and above are certified by IGI."
So be careful and ask for a quality certificate when purchasing from New World Diamonds!