An interesting photo - I like the depth of focus, though I find the ring to be out of focus slightly and so I missed it the first time I looked at this shot. I love hte little bits of fibers in the nest as well, which adds to the idea that this bird collected things, including this ring.
The diamonds don't seem very clear in this photo... there seems to be a reflection on the right side but the diamonds don't stand out enough from the metal to really see them. Maybe the focus was off a bit. Perhaps if the ring(?) were closer it would have stood out more.
Even with the title, it took me three separate viewings to make out that that was a diamond tennis bracelet in there. It looked to me like it was a patterened shoelace or something. Anyway, now that I "get it" I'll raise the score a bit. ( lighting might have been used more to highlight the sparkle in the diamonds - that might have helped ).