Princess Diana's emerald and diamond choker. The stunning piece hasn't been seen since Diana herself wore it. It was a favorite of hers; not only did she wear it as a necklace many times between ...

Of her notable ensembles, Diana – who tragically passed away in 1997 at the age of 36 – wore a diamond choker necklace as a headband ... Emanuel with the emerald-and-diamond piece fastened ...