Yes, sorry for the misunderstanding - I believe only e-rings can be negotiated (though one tPFer mentioned she was able to get a "discount" of I think 15% off for her love bracelet with diamonds, and others have gotten around 10-15% for their watches as well) but I don't think prices are negotiable per se.
Also, my Tiffany SA told me that some big ticket items are also negotiable - I *think* it was around $50k+.
Bentley - yes, I read on PS that if you hint enough to your SA, he will "work out a deal with you" and give the manager a call up to 30% off. I only learned of this recently, otherwise I would've asked my DF to hold off on the proposal so he could save longer for the HW micropave

But the soleste isn't a bad alternative!!!