Can I purchase just the right AirPod Pro?

See this article - AirPods and AirPods Case Replacement - Official Apple Support

It will cost $89 per replacement AirPod Pro, assuming without AppleCare+.

See the following from Find your lost AirPods - Apple Support

If you still can't find your AirPod or charging case, or if something is damaged, get the serial number and then contact Apple Support for a replacement. Then learn how to set up your replacement.

You can also learn more about AirPods pricing and service options.

Wats the answer

I lost my right air pod pro model A2084 Can I relace it and if so how much?