Set of 3 bulky silver tone clear stone rings

This is a set of 3 silver tone, clear stone rings. The rings are described from left to right, based on the cover photo. The ring on the left is a size 9, silver tone cluster ring, in excellent condition, signed 18kthge, with a symbol after it, that I can't make out. The ring in the middle is a size 7, silver tone, cluster ring, unsigned. The ring on the right is a silver tone ring, size 7, also unsigned. All rings in excellent condition. Beautiful lot .