To you ladies out there, or men, is it worth it to upgrade a 2.16c to 3c, or I am just wasting resources? 2.16c has 8.5m diameter, I imagine a 3c has 9.4-9.5 in diameter, I can see difference in size. 2.16c fits well on my 4.5 size finger, but a bigger size would have the ultimate effect of big size rock that I want. I tried on 3c solitaire, it looks a bit too big bc I am not used to size yet, but still nice enough on my finger. I don't plan to change setting of 2.16c stone if I plan not to upgrade bc I like it the way it is.