Enhancive Neckworn: +10 SA Bonus, +2 Dex Bonus, +1 AS Bonus, +3 EMC Bonus

[Xaerve]

The medallion resonates with your voice, indicating that it enhances its owner in the following ways:
It provides a bonus of 10 to Spell Aiming Bonus.
This enhancement may not be used by adventurers who have not trained 55 times.
It provides a bonus of 2 to Dexterity Bonus.
This enhancement may not be used by adventurers who have not trained 11 times.
It provides a bonus of 1 to Arcane Symbols Bonus.
This enhancement may not be used by adventurers who have not trained 2 times.
It provides a bonus of 3 to Elemental Mana Control Bonus.
This enhancement may not be used by adventurers who have not trained 6 times.
The medallion looks to have a lot of charges remaining.

You sense that the garnet medallion will crumble into dust after its last enhancive charge has been expended.

You sense that the garnet medallion will disintegrate after its last magical charge has been expended.

[Luftstreitkräfte]

17-23m depending on buyer

[Archigeek]

There will be plenty of demand for this. Auctioning it will get you the best possible price. In general, enhancive prices have come down significantly since there is effective no attrition but is a steady supply of new product, but items like this are the exception. I think it's worth 20-30m, but as I said, auction it.