I love the shape but the stone does have a lot of windowing/ leakage. You can see right through the stone to the background behind it. My worry would be that the light return will be dull and flat and you may see quite a bit of the setting showing through the diamond once its set. It depends whether you value having a stone which faces up large and has an unusual shape over having a lively diamond with strong light return.
My .02cents...
If we're looking at a modern Round Brilliant cut diamond, there's really one way it's "supposed" to look- basically, it's a "standard".
Once we get into Fancy Shapes, light return is like a spice. It's very personal- what one person finds spicy, the next finds bland.
So there's really no standard Light Return" or Light Performance that will please everyone who loves any particular fancy shape.
So, what might be a "compromise" for one observer might be a plus for another.
Once we get into really "weird" shapes, there are just no rules in my opinion.
It's certainly an unusual diamond!
Unfortunately there are no guidelines for ideal cut parameters of hexagons. There are not too many around so its more difficult to shop for something with specific parameters. Generally when a diamond has a table % which is way higher than its depth % it is a shallow cut and less likely to give good light return.
There are no hard and fast rules but something with a smaller table and larger depth % than this one might be a better bet. The key to it really is how it looks in the photos, videos, but most importantly to your own eyes in person, especially in "normal" lighting away from jewellery shop lights. You could also request an ASET image, which will give some indication as to whether the diamond has a lot of leakage or other undesirable light return issues.
If you are set on a hexagon then you might have to compromise on light return unless you are prepared to wait for an amazing example to turn up, or have one custom cut.
Thanks, diamondhoarder!
I've been reaching out to s few custom cutters, and everyone I've reached out to has said that it's probably better to wait for something right to turn up on the market, as the output of the rough might not be exactly what we expected. That said, do you happen to have any recommendations for custom cutters?
AMAZING hexagon collection @distracts !!!
I agree that this stone has a different sort of personality than any that you posted.
It looks to me as if it was cut from a very shallow piece of rough called a Mackel. Many Pear Shapes and Marquises are also cut from such rough diamonds.
Given that you can't cut a "normal" diamond from this peice of rough, the cutter needs to be creative.
As was pointed out the advantage is large surface area.
I have loved many such stones over the years.
They get trashed here for reasons that make sense intellectually- but that's not how I look at diamonds.
Weird that other people are not liking the middle but liking the pointed ends when it is the opposite for me!