Dragon Ring Sterling 925 Onyx retailer Large Heavy 20.8 grams

Product Name: Dragon Ring Sterling 925 Onyx retailer Large Heavy 20.8 grams
I will describe this the best I can as I don't know the history or much about it. It came from my great grandmother's ring collection. We were ways told it was worth a lot of money and very valuable and rare. Appears to be a onyx stone on the front and some type of red gems/jewels for eyes. Not sure of retailer what the gems are or if they are real. Marked 925 on the inside of the ring. Overall, in very good condition. Use the photos for exact condition. It's very heavy !! Weighs 20.8 grams as seen in photo. I could supply more photos if needed. I don't know the size either but see photos for ruler size. I would say it's definitely a big size. Appears to have some sort of stamped maker on the inside as well. Priced as seen other similar rings. Thanks for looking !!.