In this scan, which someone apparently failed to do so in a fashion that would eliminate the moire pattern, we have the original ECLIPSO, pre-pointy chin and evil grin, gloating about how well he can hide his black diamond. Ooh-ooh...black diamond! Dun dun dun dun dun dun-dun dun dun dun dun dun. One for you KISS fans out there. Anyways, this is from (I believe) House of Secrets #61, by Bob Haney and Lee Elias.