Yes, it is that keris.

I took pictures secretly when the guard was not looking.
I didn't use flash, but had my tripod, hence I could only take from a certain angle.
The thing about the Riau-Lingga keris is that even though it was covered in gold and gems, somehow it looked tastefully done. This is the major difference with the new knock-offs being made today which looked just gaudy/tacky.