Ladies I found something similiar to Anna Wintor's necklace. I don't know if this is close enough but its definitely cheaper than the S.J. Phillips website!
http://www.vivre.com/product/Shop_By_Category/Jewelry/Necklaces/Faceted_Oval_Amethyst_Necklace
This is a great find, and definitely similar to the look, for much less $$. great detective work!