My writing thought is brief.
If one of the key rules of writing is to cut irrelevant detail, anything that gets left behind has to encapsulate a unique insight from the character’s perspective - an echo from the depths of their psyche.
Philosophical, metaphorical or creative - there is no place for hard as stone or tears glittering like diamonds (unless she is fake-deceptive and tearing-up to make tracks to an engagement ring).
Writing needs to original and that is not going to be found in the plot.