Vintage cloisonne cat and tail stud earrings

Vintage gold tone stud earrings. One in a cloisonne cat with deep blue enamel. The other is black curved long dangle tail with an opal like glowing lighter blue oval cabochon (likely art glass). They were not originally a set, but matched together later, to create this unique one of a kind look. 1.25" and 2.25" long. In very good condition.