Oh my gosh, that necklace! My nana gave one exactly the same to me about 50 years ago. I've just checked to see mine is still there, that I hadn't lost it. And she looks great in the dress, clever her with adding the collar.
Glad you haven't lost yours. It is too pretty a necklace to lose!
The girl looked great in this simple white dress that she altered to include this pleated, sheer collar with a very small belt. For more informtaion visit http://www.shopjessicabuurman.com/lookbook-street-fashion_c314