E-100 ZERO, Sonic Wiki Zone

E-100 Alpha, Sonic Fanon Wiki

E-66 Da-Dai-Oh, Sonic Wiki Zone

There are near-duplicate yellow & purple Chaos Emeralds in StH Triple Trouble and Sonic the Fighters respectively. Any official Sega source on what shades they are? Sonic Wiki Zone lists them as

E-102 Gamma (Archie), Sonic Wiki Zone

Sonic Advance 2 - Wikipedia

Sonic Forces: Speed Battle, Sonic Wiki Zone

E-101 Beta (Archie), Sonic Wiki Zone

ZERO (Sonic), Pooh's Adventures Wiki

E-10000B, Sonic Wiki Zone