Coral Cocktail show stoppers!

Love these. I purchased for a formal and now they sit alone in my jewelry box. Stamped 925. Unsure what the coral drop is made of, but the boutique I purchased from said the stones are white topaz. I have many items from this boutique that are now over 10 years old, as these are.... they all have maintained their beauty! Photo of the stamp was super hard to take with an iPhone