Is there any confirmed connection between Lilly's turquoise earrings and Vanessa's turquoise necklace?

In S5e4 Lilly wears turquoise teardrop earrings. In a later season Vanessa wears a similar style of necklace. Given their positions at opposite ends of the fashion spectrum, I was wondering if that was a commentary on the evolution and trickle-down of fashion ideas, similar to the blue sweater scene in Devil Wears Prada.

Has there been any official word on that?