To make the stages of transformation more clear for you guys then they are for Chachi:
Step 1: Figure out what Diamond is and be that.
Step 2: Figure out what Chachi is that definitely isn't Diamond and be that.
Step 3: Figure out how Chachi can be better if she was a bit more Diamond and how Diamond could be better if it was a bit more Chachi. Or in other words Critique Diamond with Chachi and Chachi with Diamond.
Anything that's more of a critique of diamond or a really nuanced take (Diamond really wants to be flawless, but mortals recognized that the most beautiful Diamonds are the flawed ones) instead of a description will be noted for later but doesn't help in this step.
Step 1: Figure out what Diamond is and be that.
Step 2: Figure out what Chachi is that definitely isn't Diamond and be that.
Step 3: Figure out how Chachi can be better if she was a bit more Diamond and how Diamond could be better if it was a bit more Chachi. Or in other words Critique Diamond with Chachi and Chachi with Diamond.
Anything that's more of a critique of diamond or a really nuanced take (Diamond really wants to be flawless, but mortals recognized that the most beautiful Diamonds are the flawed ones) instead of a description will be noted for later but doesn't help in this step.