Any info on this ring please

[Stushep]

white gold 18k17 diamonds ring.

 

[Stushep]

[ white gold 18k17 diamonds ring.

 

[stracci2000]

If you search "British hallmarks" you will find a large, imposing chart. You should be able to research those symbols and find out when/where this piece was made.
The style looks 1980s to me.