Ok, my first set/diamond was .73 in a matching channel set setting. size 5.5 finger.
Then we upgraded the center stone to 1.75 - there were some inclusions on the side that caused a bit of a crack, so obviously i didn't want it anymore and i traded it in for my new rings!
We changed the entire thing for my dream setting and a 1.07 center stone. The new setting/diamond is 2.62 ctw and now a size 6 finger.
all rings were 14k wg and all have had RB diamonds.