This is Carolyn Cave's 'Scrumptious Scallops' Necklace. It was in Bead & Button magazine (June 2014).
I beaded it with blue and black and silver, but don't like the result. Carolyn used off-white to brown beads (see below), which is just beautiful.
I can't find a website for her but you can find her Lady Beadle Designs on Facebook...