The whole clue object choice thing is partly what I was waffling about when I said I could see why they were hesitant about offering the gem to Elita. I can think of a few reasons why they might not want to give it to her:
Pickle has said some rather nasty things about her. It's at least plausible to think she might not be wholly trustworthy, although the evidence from their own Quest doesn't really support that, since she held to the bargain over getting them a ride on Smirkenorff.
She's conducting some kind of ritual, thus I think they're not totally dense to ask what she wants to do with the ruby. If she's using it to summon evil spirits, create more disgusting and downright offensive clothing like her current attire, or something equally evil, then our "Truth and Justice" motto would perhaps make us question if we want to give her the means for the rite.
Elita's unwilling to tell them much about what help she'll offer them in return for the ruby.
"The key to my dungeon is the jewel in my crown." Note my dungeon, my crown. This is, I guess, Lord Fear's Dungeon, so it's at least plausible that the right thing to do is to keep the gem for the final encounter and not waste in on a smelly little cavern elf with no dress sense. It's also possible, of course, that the clue just meant "take the jewel because you'll need it", but I'm arguing not that it was needed later on, but that I can see why they had reservations about giving it to Elita.
GG does like trying to help excuse teams just a little, to balance out being rather bitchy about them. GG also seems to like making nice orderly lists. 1. 2. 3. Mmmmm, nice lists.
This is a very old post (only 20 years later haha) but I'd like to thank you for this as it offers some understanding to the team's actions that I hadn't thought about before. I always thought it was annoying that this team took so long deciding to give Elita the gem, but with the reasons you mentioned it does make it more understandable.