VINTAGE 1980 10K SOLID WHITE GOLD SAPPHIRE CLASS RING, SIZE 6 1/4

I HAVE FOR SALE A VERY BEAUTIFUL VINTAGE 1980 10K SOLID WHITE GOLD CLASS RING WITH A BLUE STONE WHICH I BELIEVE TO BE SAPPHIRE, BUT IT HAS NOT BEEN CHECKED. IT IS HALLMARKED 10K AC COPYWRIGHT THE RING IS FROM MARSHALL COUNTY HIGH SCHOOL 1980. THIS WAS A ESTATE SALE FIND, IT IS IN GREAT VINTAGE CONDITION. I HAVE A VIDEO ALSO PICTURES OF THE MEASUREMENTS, WEIGHT AND HALLMARKING. ANY QUESTIONS PLEASE ASK. THANKS FOR SHOPPING MY CLOSET. PP