Some people have asked what ring Tommy wears and in season 1 episode 5 at 48:54 he's clearly wearing a buckle ring. This is also interesting as these rings can signify love
Peaky Blinders recap: series two, episode two – it's not easy being Tommy Shelby | Peaky Blinders | The Guardian
Tommy's Rings: I know there was a post asking about them a week or so ago, here's a screen cap - definitely not a claddagh ring : PeakyBlinders
Aberama Gold | Peaky Blinders Wiki | Fandom
The Hub 15% Off Peaky Blinders Jewellery Collection - The Hub
How to get the Peaky Blinder's style – Friar House