Amazing Vintage 60's Yellow Gold Coral Cocktail Ring

Absolutely no makers marks in this ring, unfortunately, so I can't tell you the exact make of the metal. I believe it is at least gold plated, if not made of solid gold. The band has less of a gold colour and more of a silver to it, which is why I thought it might be gold-plated, and maybe the gold colour is slowly fading. No tarnishing to speak of, and no sign of a copper core, and everything about it suggests it is high-end. Real coral inlays, and exquisitly detailed metalwork! Even the prongs are well made and exquisite in detail. 4 grams. Has one 2 mm dent on the inside of the band, but you wouldn't be able to see that when worn. A treasure of a cocktail ring!