Thanks and yea it's getting there.

Think the problem with this bit was I'd fallen into a deadly self induced artistic trap. Fixating on a single detail and missing the blindingly obvious :) Compounded by refusing to not give in and take a breather.

Also didn't use life-long learnt tricks, like abstracting complex shapes. Fortunately life interverned and I had to stop yesterday. So I looked again today and can see it's nothing more a diamond with a hole in the middle!

Diamond is easy enough, a boolean cut gave me the measurements, so I can go back and re-hand model that area. Though I think I'll have to stick with a boolean cut for the hole and clean up. Not ideal as booleans are messy and hand modelling always gives better topology.

But I'm hopeful this way could work.

Pinky - you left the lens cap of your mind on again.