The first two Diamonds of this AU! (For Sans and Papyrus, see this post here)
Lore dump! (For those who like it :) )
The Underground is ruled by four diamonds: Yellow (Asgore), Blue Toriel), White (Asriel), and an honorary Red Diamond (Chara). While I have lore for White and Red, I'm going to save that for when I post their designs^^
Asgore is the leader and the biggest, similar to how White Diamond was the head honcho in Steven Universe.
The Diamonds, while still being large, are much smaller than in Steven Universe (About 3x the size of a pearl)
Asgore and Toriel are the oldest monsters/gems. They emerged around the same time.
Asgore has his gemstone on his chest because he can let his emotions take control (he was unable to find the courage to cross the barrier with the first human soul, and he was reluctant to kill Frisk). He also wears a crown to symbolize the level-headedness and intelligence of a leader (monsters with a gemstone there tend to have more of those traits)
Toriel's gemstone is in the middle of her back. No matter what stage of life she's in she's constantly looking back on the previous stages of her life (moreso in this au). She was heartbroken at the death of her children and ran away, wanting to live alone in their long-forgotten home on Ruins. In order to avoid being bothered by other monsters in her immense grief, she changed her form to appear as a sapphire (design coming soon). When she and Sans tell knock-knock jokes, it's through a broken communicator (the visuals glitch to the point where you can't see anything, but the audio is fine).
