I have lost a sapphire necklace today whilst walking the dogs. I have lost it between Hatfields and the park by the eye, via Hatfields park, the park by Oxo tower and the Southbank. I have searched but to no avail - a bit like looking for a needle in a haystack! I only put it on as I have recently been burgled and didn't want to leave it at home. If in the unlikely event anyone finds it can you let me know. It's not very valuable but was a special gift many years ago. Thank you .