Na im sorry, now I've seen that I can confirm its 100% fake.
Here's the dior website, Beggys ring is shown being worn on the FINGER of the model. So clearly, Dior have made it as a finger ring not a thumb ring.
View attachment 1211259
Now as we're all well aware, Beggy can't generally think outside the box, so if a ring is meant to be worn on the finger, like shite would have just decided to wear it on the thumb to be different.
According to the Dior website, they have a range of sizes available, so if you were dropping £300 on a ring, and buying it from selfridges, you would try a few different sizes on on the counter and the sales assistants would be helping you to choose the size that fit your FINGER best as the ring was designed.
View attachment 1211274
TLDR its a finger ring Beggys wearing on her thumb cos she ordered any old shite from a fakes website which she obvs cant try on in advance and when it turned up it was too big to fit any finger so on the thumb it goes with a tall story about how shes "surrrrrr greeeehhttfulll a can treat maself cos a flog face sanders."
Bogtrotter you make it too easy for us nasteh trolls.