Tattered Note

"The combination to the vault has been divined: diamond, ruby, ruby, sapphire, emerald. The rest is up to you and your friend - do not disappoint me. Arkemyr will show you no mercy if you're caught, and you can expect even less from me." A scribbled notation in the margin, written in different handwriting, reads "Employer - Concelhaut? Kalakoth? Investigate later."