Lost Ring near Downtown Toronto, Toronto, Canada

Lost a stack of three silver rings or a three-band silver ring. The top ring has a beaded band with a bezel-set, faceted, oval purple stone. The middle ring has a smooth band with a bezel-set, smooth, oval white/translucent stone. The bottom ring has a twisted rope band with a bezel-set, faceted, oval purple stone. The item has high sentimental value.