It all shows that it is a natural red coral, which has not been dyed or treated.

If it is treated, the remarks column will say: treated or dyed.

The people in the appraisal institute are generally very professional. When they saw the baby's eyes wide open, they knew it was true at a glance, so many testing items did not need to be done, and many items on the certificate were blank. Only when you are not sure whether it is true or not will you get data from various test instruments.

The institution with CMA certification is a national authorized jewelry and jade appraisal institution. If the appraisal result is wrong, they will bear legal responsibility, so don't worry about your certificate and your coral.