Ghosts (Kreet 21)
It's a bit unexpected, which is always good, and of course the black jewel is a chekhov's gun. but that's okay. i can't reject all writing tropes. some of them exist for a reason.
Darkness Approaches
He gestured xani to hand over the gem as his guards gripped their wepons but instead of listening she simply turned her back while sharon and elicia marched over and knocked out both guards with one punch before staring at him in the eyes with anger.
First Arc: The Fallen Kings -- Chapter 5 -- Part Three -- {Threats}
"the gem of sir gawain was crafted by none other than furui. furui created mystical gems to enchant their weapons at the time of their war, and these gems hold mystical spirit energy."
Kinktober Day 5: First Kiss
"like...how was the quest 'find the jewel' if the jewel turned out to be the monster they were hoping to kill? like that doesn't make any sense!"
A Long, Dark Road (Part 11)
"this stone," the dragon said, "this gem, eliminates the first half of that dilemma, by storing the essence of a demon within the mortal realm, contained within the jewel."
MLP: Lunar's Return
It was then that she turned and walked within the cave and retrieved her saddle bag which was full of gems of different sizes and colors. "well then, shall we?"
Fursona high school ch 3
gem was the first to speak and say " you to make such a cute couple." i looked at her and gave her the i know eyes. lunch was soon over gem and i walked to class.
Smoke Break
The gem is enchanted with some sort of durability thing or other. i'm not a scale-bag so i don't know. i do know that the gem itself is williamsite though." her smug smile softened to a more genuine one.
The End and The Beginning - Chapter 5
Appears in the middle of the gem.
The Cerebral Corporate Cortex
That jewel has trapped his power and freed us all! but we must destroy the medallion to end this." the rodent puts his pink paw on the agent's shoulder.
The New Alveri Chronicles: In the Land of Nod
No sense starting a feud over a basket of gems." i purred softly.
Sparkles and Scales
Being able to eat gems was one dragon ability that spike had kept even as a pony, though he could only eat a small amount of them.