In the early 1930s, Verdura toured Europe with his new employer, Coco Chanel. Among their stops, they visited the Church of San Vitale in Ravenna, where the mosaic of Empress Theodora inspired Verdura's iconic Byzantine designs. Transforming the Empress' mosaic necklace into gems and adding a decadent drop, Verdura created the "Y" Necklace. one-of-a-kind 18k gold necklace set with five tanzanite and five indicolite beads accented with a faceted oval green tourmaline and one oval tanzanite cabochon pendant