14K 585 Vintage Yellow Gold Ring

There is 14K 585 inscribed inside of the ring.

The Ring is 30mm wide (outer diameter), 26mm (inner diameter) and 15mm thick. I do not have the weight of the ring.

There are some scratches on the ring, but the condition is pretty good.

This ring is from an antique shop in St Andrews'  UK. 

I will appreicate if someone can help me out with the origins and the estimated value of this gold ring. Thank you :)

Please see also [ http://instappraisal.com/antique-appraisal/18k-750-vintage-yellow-gold-… ]. Both rings have the same dimension, and similiar make. I would believe its from the same maker.