Large Square C Z Topaz Ring / Marked 18K GP / Circa 20th Century

Salvation Army produced my find for today thanks to my in store connections. My friend told me to wait a minute and returned with this beauty. I would have bought it even if it wasn't marked. Although the mark is hard to read unless magnified. I figured out after I got home that it read 18K GP (plated white gold). Some of the copper base is showing through the outside back of the band so it was priced at $3.99. It was half price day so I got it for an unbelievable two bucks and tax ! I'm never sure about the stones in these rings, but it is large probably a few carats. It looks like a citrine or topaz in color. Sparkles like crazy too. One of the prongs is bent back a bit so the stone rattles when you shake it. Don't know if it's worth taking to the jeweler's to have it tightened. I would never try to do it myself for fear of cracking the stone. -Mike-