Literature Reference: 星瑜无出处，但“星”与“瑜”皆有美好寓意。 No specific source, but 'Xing' and 'Yu' both carry beautiful meanings.
星:
Stars and starlight. In names, they often symbolize a future as splendid as brocade, full of brightness and promise.
瑜:
The radiance of jade, auspiciousness and well-being, grace and composure.
Meaning: Shining like a star and precious like fine jade.