Answer:
I have every color but no gold.
I climb higher as I get hotter. I can never escape from my crystal cage.
After you go through a fall, I will take over. All life will stall, or at least grow slower. What am I?
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
You can always see it, but it's too far away to touch. Mountains rest on it, and at sea it surrounds you. What is it?