I see the ADPi badge pic on my original post is gone, but I have been swayed to the alternating sapphire/pearl white gold badge lol.
It's swoon-worthy.
ETA: Since this thread began, I've collected a few (seven ... ) more Alpha Phi badges. My own is a single diamond in 10K, but I also rescued 5 plain gold gloss, a gold with all pearl and a white gold all pearl. The two pearl ones have the centre pearl mounted differently. The yellow gold is from 1950 and the white gold is from 1966, and the white gold one is mounted out further while the 1950 one it's more flush with the rest. Not sure if there was a change in jeweler that would explain the differences.