While ceramic rings have many advantages, they also have a few disadvantages to consider. The worst inconvenience with these rings is that you can't resize them.
Most metal materials for rings are softer and more malleable, allowing jewelers to resize them with ease. However, ceramic is not a malleable material. As your fingers change size with age, you may find your ring no longer fits well. Some sellers offer free exchanges where you can swap out your current one with a different-sized ring. Clarify your seller's policy before making a purchase.
Another disadvantage to these rings is their hardness. While it often works to the wearer's benefit, ceramic hardness has a few downsides. Its rigidity makes it more prone to shattering or breaking if you drop it. Albeit, the amount of force needed to shatter a ceramic ring is quite high.
The final downside to ceramic rings is that they don't work well for intricate designs. As mentioned before, other materials are more malleable than ceramic, making them easier to shape. Because ceramic is such a dense material, it's troublesome to craft designs for it.