so it just a branded card clip ?? lol
Well, as you said you knew, it's made from sterling silver which is more valuable than whatever metal the porper clips are made from. Also, it says it's handmade, so the design on the front took some manual labour to do on each clip.
As for the Blood porper clips, I'm guessing they'll probably have some twist that makes them a bit more expensive, whether it's material or design. Hopefully, he wont have it made of glass like his Bloodwood case has a glass front.