French Connection just came out with an art-deco influenced necklace, available for $68 at fcuk.com.
Typically I offer an alternative look that costs less, but in this case, I'm going to recommend a necklace that costs a tad more: It's this House of Harlow by Nicole Richie resin necklace, and it is stunning! If you love it, snag yours for $120 at Chickdowntown.com.