I included a notarized copy of my IELTS results, and email communication between the language center and I confirming that the former will send original copies to CIC.
They dont usually provide a second original result copy to the candidates. In my opinion, you have 2 options,
1. sent CIO the original one that you have received as a candidate (you will be left with no originals for yourself, like most of the applicants), Or
2. fill out the appropriate form at the language center to request another original copy to be sent to some office address (e.g. to a friend/collegue) and get it from there and send that copy back to CIO. Some applicants have used this way to get another original copy of IELTS result. However, some of the test centers donot send copies to offices' addressess inside the same country, it has to be some International org, or University. If your country's test center is like that, and if you have contacts at any university, then try sending a copy to some University and get it from them when they receive it.
Possibly the easier option is to send the original copy of the result that you have. Only my opinion though.