Dew-drop and Diamond by Robert Graves
The difference between you and her
(whom I to you did once prefer)
Is clear enough to settle:
She like a diamond shone, but you
Shine like an early drop of dew
Poised on a red rose petal.
The dew-drop carries in its eye
Mountain and forest, sea and sky,
With every change of weather;
Contrariwise, a diamond splits
The prospect into idle bits
That none can piece together.