Hi, I was wondering if the gem has any special properties, or if I should just sell it...any advice is appreciated! Thanx!

yeah thats a good question i have that gem too, but i dont know what to do with it

Whatever you do,don't sell it.
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you need it for the horn of valhalla

succes verder,fellowdutchman!!

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It's used to upgrade the horn of Valhalla by one of the merchants in the southwest of Waukeen's Promenade.

And of course I sold the horn in Maevers Guildhouse just before i killed Maevar and everyone, including Gorch the shopkeeper, turned hostile! AAAAARGH! Thank Torm for Shadowkeeper ;)

DragonReborn

i keep most of my expensive gems

Just a personal preference, but I wasn't impressed with the Horn of Valhalla. I used it against the party in the sewers (before the Cult of the Unseeing Eye) and the beserker was pretty useless.

The best you can do with the Horn is summon 1 12th level fighter that doesn't stay around very long. I like the Monster and Elemental summonings much better.

Still, the choice is yours. An extra beserker could give you that necessary edge in a critical battle - especially against a mage.

Are you suggesting that a 12th level beserker at no more cost than a puff of wind is worse than no beserker at all? Keep the jewel and have an extra fighter every day to keep the doctor away

The only time I've ever used it (and probably ever will) is for flak, specifically against kangaxx so I would keep him away from imprisoning my characters