I like all 3 designs!
The bezel- is very distinctive and different to the other 2 styles of prongs.
prong set:
3 - makes the stone more triangular in Overall shape of the stone
4 - stones are more square looking
i feel that the 3 prong is more the “look” of a graduated tennis necklace. It showcases more of the stone. It looks also more elegant...
also search on this site about these types of necklaces... some have said the stations do flip a little. It has to do woth the length and weight ofthe necklace. However, they were referring to a necklace with all the same size. So, perhaps the graduation will help in minimising the flip.
it will be a stunning choice whichever design you went with.
Here are the pros and cons I see for all the necklaces:
#1: pros - great apparent size thanks to the bezel, can afford to go down in color thanks to the YG and so can get bigger stones. Cons - I don’t like the triangular shape the necklace makes, and I don’t like the visible metal of the bezel, necklace feels a little dated.
#2: pros - very classic design, less metal and wearable. Cons - 4 prong gives the stones a square shape and I think the graduation is too stark.
#3: pros - less metal showing, very classic yet modern style, 3 prong gives flexibility and maintains the round shape. Cons - the stones will face up smaller than #1 because of the lack of bezel and I find the graduation too stark as well.
#3 because it has the least amount of metal showing. All I want to see in my diamond necklaces are diamonds. Elegant and classic and never out of style.
Just be warned that they tend to flip.
I don’t know if it was just me, but mine never stayed “face up”. Very annoying. In the end I solved the problem by putting a diamond pendant on it. It doesnt flip now.
I chose a 4 prong setting in yellow gold.
Of your pieces, I like no 3.