In Homeworld, in an underground forge, Blue Diamond was holding a soulgem, Dandoodle's to be more specific
Blue Diamond: are you sure about this?
Yellow Diamond was holding a Snow Opal (though to the naked eye, it looked more like a turquoise)
Yellow Diamond: yes!, we need some backup during this new rebellion
she said this as the two threw of them the ingredients in the forge, fusing them as the Soul-Gem was infused on the Snow Opal, a new gem was formed
?: what?, where am I?, who are you, and (Looks at itself) who am I supposed to be?
Yellow Diamond: I'm Yellow Diamond, this is Blue Diamond and, look at your gemstone
?: you mean this teal spot in my paw?, so am I supposed to be a turquoise
Yellow Diamond: Teal is a coloration of Snow Opal, and that's what you are
Snow Opal: a Snow Opal, huh?, well, what a fabulous gem choice, (beat) why am I wearing a Shinobi Shozoku?, are Snow Opals some kind of ninjas?
Yellow Diamond: well, Snow Opal, you're the first instance of Snow Opals in Homeworld, thus, probably
Snow Opal: wow, (pulls his paw to his chest and abruptly extends it, causing his gemstone to glow, and a Shuriken to appear) (yips shockedly) a Shuriken?
Blue Diamond: congratulations, you summoned your weapon
Snow Opal: but it looks like a flower, won't enemies laugh at me for that?
Yellow Diamond: go ahead, throw it, that might shut them up
(Snow Opal throws his Shuriken and it flies all over the forge, before Snow Opal skillfully catches it and it the Shuriken turns into light and retracts back to his gemstone)
Snow Opal: cool! (walks up to Yellow Diamond) My diamond, I'm ready to begin my training!
Yellow Diamond: Let the training begin!
Dual Citrine (Sargeant Burly): Follow me! (Snow Opal follows him)
(training montage)
(end montage)
Yellow Diamond: You've made great progress, I'm sure the rebels won't see you coming!
Snow Opal: Thanks!