Signet ring, chunky Cornelian

A unique and classic late 1950’s early 1960’s mens signet ring with a hex of cornelian, and heavy machine turned shoulders. Ring is in solid 9ct gold with a full hallmark London 1959.
The ring size is ‘R’ and weighs approx 11.5G in total.
Would make a great vintage graduation or Birthday present for those into 60’s retro.
Has the patina of a second hand ring of this age with some pit marks and small deep scratches, though has been professionally cleaned and polished.