[The Fascinating Repairmen #014 “The Jewelry”] (Viewer #)
If you want to skip ahead to 3:05 when the actual repair work starts, I can tell you that the problem is that it’s missing the prongs that hold one of the stones in place (which is what he works on first), and it’s also been cut through on the bottom, so he has to connect that back together.
Or you can pop in at 2:25 & 2:45 and see the problems for yourself.

Interesting! Thanks.
They have birthstones rings in Japan? Oh, it came from his family, I bet.
NIce work.
Regarding the title: I’m not sure if the letters were Elvish, but the language was the Dark Tongue of Mordor. (This illustrates how to get an answer on the internet: post an incorrect answer and someone will correct you tuit suite.).