Nephrites

Nephrites are common solider Gems used by Homeworld, usually for body guarding. All Nephrites shown so far, including "Centi", have been voiced by Aparna Nancherla.

Role
Nephrites are in charge of piloting Homeworld Dropships to begin colonizing other planets and may also serve as pilots for various other types of ships. Their rank in the caste system is never clearly stated but appears to be high considering they captain their own ships and Yellow Diamond was shown to contact a Nephrite captain directly in "Jungle Moon", something she would not do with a lower-ranking Gem. Numerous Nephrites were corrupted, with one (known as "Centi") formerly being a captain in charge of other Nephrites (in command of a dropship that went to Earth). These Gems flew in Gem spaceships and started building structures on Gem colonies.

Nephrite Facet-413 Cabochon-12 ("Centi")
Known as "Centipeetle" or "Centi" while corrupted, Nephrite Facet-413 Cabochon-12 is a Gem sent from Homeworld to start building the colony on Earth. However, she got caught in the war and was ordered to retreat. She was unable to board her ship in time and suffered from the attack caused by the Diamonds, resulting in her corruption.

Unknown Nephrites

 * Unknown Nephrite - Pearl once took a Nephrite out of the cockpit of a dropship during the Rebellion.
 * Hessonite's Nephrites - A group of Nephrites working on Hessonite's warship. They are said to be performing a drill at the time of the Crystal Gems' arrival to the ship. They are mentioned in Save the Light.
 * Nephrite Facet-XJ Cut-763 - A Nephrite who works for Yellow Diamond. In the flashback from "Jungle Moon", she shows hesitation for doing her job as the planet they are terraforming has organic life; Yellow Diamond ignores her complaints and demands for her to do her job or else she will shatter her and her crew personally.

Nephrite's Crew
Nephrite's Crew is a group of various formerly-corrupted Nephrites that debuted in "Monster Reunion". They became corrupted by not evacuating Earth and not leaving their captain behind. As of "Monster Reunion", they all lived together in the Ancient Gem Colony Ship. However, in "Change Your Mind", they were uncorrupted by the Diamonds at Rose's Fountain.