Blue Opalesque Ring Size 7, AVON vintage jewelry

Here's a US size 7 ring from Avon. The condition is preowned and excellent with no flaws noted. The colors are silver and sky blue. The blue opal cabochon is oval and has shimmering areas of white and pink within it. The ring is signed, I think it's a capital "A" for Avon. The metal is slightly attracted to a magnet.