First, check if the ring is alive. If so, it means that after wearing it for a while, its ring is a little loose.

Second, recall whether your fingers were swollen when you bought them. Was it because my hand was swollen when I bought it, so I bought it a little too big. Now it seems a little loose after my fingers are swollen?

Third, the weather also has an impact. When the weather is hot, your fingers are usually a little swollen.

Fourth, if it is not the above problem, maybe it is the quality of the ring itself? Please consult the merchant for replacement.

Personal opinion, for reference only.