6 prong or 4 prong E Ring?

Mine is a classic Cartier setting...large stone, with four pointed prongs.
I agree that the six prong setting is more secure but mine is set with four to minimize the look of the metal...focus is more on the diamond.
 
4 prongs makes the round stone look more cushiony at a glance. 6 prongs I prefer for many reasons, roundness, security, size and balance. But it would look good either way really. To me 6 prongs make it look like the stone is wearing a crown.