How very frustrating for you Nellie. I wonder if you are experiencing similar problems to what I have had in recent weeks?
There are 2 separate links in my 2 separate posts; one on the Cullian diamond and the other on the Koh-i-noor.
I have just checked both and it appears that I have the links correct - apart from the fact that I always do a click and paste or a cut and paste. If you tried the one above in this link then it is to the Koh-i-noor.
I realise it is frustrating, but I do not see what else I can do at present. Perhaps some one else knows how we can provide access to sites in such situations without breaking copyright or just relying on a summary of the article. I am loathe to attempt the latter as I think it is better that people read the authors' work in its original form. Apart from anything else, in the case of the Koh-i-noor article, I would not have the technical skills to replicate the details of the authors' technical experiment, their explanation and the interesting conclusions they drew from that work.