Back home in Homeworld ep 3 (ThatDudeIsHere)

Turning sharply to face the source of the voice Black quartz was shocked to see a regular Black quartz smirking at him "Ummmmm I'm just going to go this way....... at 40MPH." Black quartz said hiding the rubies behind him "Are you sure about that." the regular Black quartz replied menacingly "Uh yeah, I'm pretty sure." Black quartz said before sprinting down the tunnel with the rubies. Upon reaching the bottom of the tunnel they closed the exit blocking the other quartz way ; after several seconds they heard the unmistakable sound of someone running into a wall. Alerted by the sound of the closed door, Black sapphire appeared and took the stolen data to examine "Oh no! This is really bad!" she said worriedly "What is it!?!?!" Black quartz asked "The diamonds they've made a drill of...of....gem shards and if not operated correctly it could completely destroy Homeworld!" she said disgusted "That's horrific we MUST stop them!" he replied angrily "Well I do have one idea." Black sapphire stated unreassuringly. "So let me get this straight your plan is to fuse and if all goes well IMITATE A DIAMOND in order to get close enough to yellow diamond to talk to her. What could possibly go wrong?" Walking up to Black sapphire he swept her off of her feet and begin to spin round suddenly they both began laughing until they were consumed by a bright flash of light and when the blinding light vanished crouching was an enormous gem with 4 arms "WOW! I guess two really is better than one haha!". After getting use to their new form and attempting to cover up their second gem they began their ascent to the surface of Homeworld upon arriving at the gates of yellow diamonds main palace they were greeted by a yellow pearl "We wish to speak with yellow diamond." they said confidently "And you are....?" the pearl replied "Black diamond of the uhhhhh 'oreo' colony." Black diamond said panicking "hmmmmm my apologies right this Black diamond." the pearl said before turning a corner and whispering "My diamond we have an intruder in hallway 3.". Listening in Black diamond said "Well that can't be good."