Yellow topaz multi stone gold over sterling silver halo cocktail ring size 8

This ring was purchased from an estate and is in excellent pre owned condition showing little signs of wear. Vintage era most likely. Big yellow stone looks like citrine but is not citrine nor sapphire. It tests and views as topaz and could possibly be some other type of gemstone but topaz is the most likely. Yellow topaz sometimes gives off a glow under UV light. Small accent stones test as amethyst, garnet, white topaz, green tourmaline or garnet. This is gold plated over sterling silver. Measures a size 8. Very vintages vibes on this ring but unsure of the age. 925. Not resizeable. Reasonable offers considered