I like the picture. Focus seems really soft. Have you take the picture through the glass? I still love it anyway and I still think it deserves a 10. So, 10 it is.
nice background color but not crazy about the heart-shaped formation of the stones.. I would also like to see the front of the stones as perhaps they may create interesting highlights that will give depth to the stones. In any case, well done.
I like the idea of combining Love and Diamonds. To me it fitts well to the challenge topic.
However, technically it could be better: a different angle of view, setting the light so that some nice reflections of the jewels occur, maybe a frame etc. would have been great.