About DLC coating

I do not understand the terms and technology of DLC coating. May I know if DLC coating is only available with a carbon grey bezel?

According to the pictures from Garmin, I found that the colors of the bezels on the following two models seem to be the same:

https://www.garmin.com/en-GB/p/1228171/pn/010-02905-11

https://www.garmin.com/en-GB/p/1228171/pn/010-02905-40

However, only the model with the leather band has a DLC coating bezel. Is there a model with a DLC coating bezel and an orange side protector? Additionally, is the bezel with DLC coating more scratch-resistant than the normal titanium one?

Thanks!