This is a Gents 9ct Yellow Gold Round Brilliant Cut Diamond set Oblong Signet Ring.
There are 7 Diamonds in a Channel setting in this ring.
Pre-owned.
Hallmarked. 
Size: Z
Weight: Approx 4.91g
Diamond Weight: approx 0.15 carats
Ring sizing is available upon request.
Sensible price offers will be considered. 
GENTSCOUNT.GS4.