'ʀᴇᴅ ʜᴀs ʙᴇᴇɴ ᴍᴀᴅᴇ'

Cruel beauty, bright, one who's light shines much more then even White Diamond herself.

Finally, she had been made. A few hundred years before Pink Diamond was shattered, in fact. Close the two Diamonds were, as one perfect, and the other everything but.

How did such a kind and loving Diamond turn cruel?

Why was Yellow Diamond so infatuated with this new Diamond?