Old johann strauss coin/medal i need help to identyfi it

Looks like jewelry, is that a precious stone there? Ruby?  What does the other side look like?  Weight? Diameter?

From what i can see yes it is a gem size is about 20 mm and the weight 3.5-4.5 grams

Only thing I could find was this:

https://www.coincircuit.com/coin-Auction/gerhard-hirsch-nachfolger/7696465/lot-2395-medaillen-des-m%C3%BCnchener-medailleurs-karl

i saw this too but this one is made from gold and has that ruby and i dont know how much rarer it is

ciprian.mb

i saw this too but this one is made from gold and has that ruby and i dont know how much rarer it is

I suspect yours was gold plated and the gem added and is probably one of a kind, essentially post-mint-damage.  

and as a last question could you guess something about the value?

ciprian.mb

and as a last question could you guess something about the value?

I would guess significantly less that the one at auction mentioned above.  I don't think any collector of that type of medal would be interested in one that has been modified like that.  I could be wrong but I would be surprised.

i think it’s silver 800‰ gold plated: