Ten years ago...

"My diamond," Japser greets, "a red eye has found the Crystal Gems."

"Have they been apprehended?" Yellow Diamond asks.

"Yes," Jasper replies, "but as for Rose Quartz, the Peridot reported... complications."

Yellow Diamond actually begins to show emotion, glaring at Jasper.

"Explain," she demands, rage hidden in her voice.

"There is a human," Jasper explains, "with a pink gem, but we can't bring the human here as the human's father is to cautious. If we were to strike, he'd see us coming a mile away."

"Very well," Yellow Diamond sighs, "you are to go with this Lapis and investigate this human. If you find any link to Rose Quartz, you are to bring the human to me. Is that clear?"

"Yes my diamond."

Jasper begins to leave, Lapis isn't far behind.

"And one more thing," Yellow warns, "If you fail to get conclusive information in eleven years, and fail to report to me, I will go and kill the human myself. Do not get attached. Understood?"

"Yes my diamond," Jasper replies.

Jasper and Lapis head to Earth, meeting up with Peridot in a ship just large enough for two gems, to prevent Greg from noticing. Late in the night, they kidnap a small child with a pink gem.

One they would call...

Steven Universe.