Ahh, here we go...
Okay, that explains it. I would be curious to see one in the sunlight, just out of curiosity. (I did a quick PS search for "Crown of Light" before posting and didn't see any posted.) I had never heard of Diamonds International, either. Hmm…
It's a new cut based on the Jubilee. Great in candle and spot light like @lovedogs says but not really perfectly suited to modern light situations. It almost behaves like a muted crushed ice in a round when looked at head on. If that is the look you're going for without the broad flash or sharper fire then it's a beautiful diamond. In some ways similar to rose cuts. It shimmers. It's like a step or emerald cut. It can only do what it's been cut to do.
I personally like the jubilee better from videos I've seen
Me too, it has a little more broad flash and different flavor. Spotlighting does wonder for them like the Park videos, they look their very best.
Alex Park offers them once in a while. They measure deep and face up small for the weight relative to standard rounds. 83-84% depth for the recently posted ones and a loss of up to 0.9 mm in diameter. I have been keeping track in case a lab one comes along.
1.09 ct @ 5.9 mm (vs 6.6 mm)
1.71 ct @ 6.8 mm (vs 7.7 mm)
2.04 ct @ 7.2 mm (vs 8.1 mm)
2.24 ct @ 7.6 mm (vs 8.3 mm)