I've seen these. My understanding is they are Diamonds Internationals fancy cut with the extra facets and are cut deeper than the typical MRB. Lots of scathing reviews about them. I would stay away.
Ugh, I just went to their website. They are selling overpriced garbage. You can't choose your own diamond....you just click on a color/clarity. AND, it says that certs are from EGL, GIA, OR AGS (as though somwhow those are all equal....), But have in small print that some pieces won't come with any cert. WTF????
Not gonna judge its appearance without seeing it person. It may be beautiful in person
Here is a video from their youtube channel.
I will comment on what I see in the video.
First, it is a red flag for me when a company promotes its products using an extremely unrealistic and biased light setting where light comes from a very narrow range of angles
Second, the extremely high crown and pavilion angles translate to an extreme loss in spread.
Third, look at the edges. They are just dead.