Thanks for posting Dave. I am always intrigued when there is a chance to see something new However, this time I'm afraid that the photo is a fake one. The "artist" has taken an old photo of the Queen from a photoshoot when she was a young Crown Princess and then cut and pasted the fairly new gold tiara (which I know is not the cup of tea of many but which I quite like) and then a cut and paste of a very altered photo of the necklace that goes with the tiara. This necklace never had such a large stone fitted to it.

The original photograph:


The tiara and necklace cut and pasted onto the original photograph: