Vintage Blue Aurora Borealis Flower Brooch

I believe this is a vintage 1989 Avon brooch? I'm not quite positive though. Dual flower design with blue AB petals and silver tone stems. Clear rhinestone accents. Approximately 3.5" in length Note: Most of my jewelry is pre-loved. I only wipe down jewelry. I do not deep clean any jewelry before shipping. I am not a professional and do not want to risk damaging any vintage item. I will note any flaws/defects. Please see all photos and do not hesitate to ask questions.