I was wondering if there are some size of diamonds that are best with 6-prong and best with 4-prong. I personally thing a 6-prong looks better in general, but I'm going to be buying an engagement ring 0.75-1.0 cts. Any advice would be appreciated!Someone told me that for something less than 1.25cts a 4-prong is better because of the light going through the diamond.thank you!