Help in dating a ring

[Staruby]

Hello everyone,

I will be very grateful to any help dating this diamond ring I have (see attached pictures).
I managed to identify the Edinburgh hallmark, but not the date.

Thank you in advance for any help on the matter!

Daniel

 

[RSargent]

These are clearly European hallmarks but hard to see. Check websites about this. It has a classic claw mount I associate with mine cut diamonds. Lovely!