Vintage Bisbee turquoise ring sz 7.5 RARE stone 50's 60's estate navajo sterling

Please take a minute to read the 3 photos I have here that will educate you on the amazing rare Bisbee blue turquoise! This one is mostly the vivid Bisbee blue with the chocolate, reddish matrix on the sides, probably underneath too, This stone made some stunning ring! Most NA and navajo silversmiths did not sign their jewelry back then, this has been tested and is 100% sterling, I buy all my NA and navajo from trusted sources. This Stone is almost like the Sleeping Beauty stone but has the matrix that SB has very little of. This ring was polished several years ago to remove the deep dark aged patina. I love the aged look but it's still a VERY nice rare piece. The mines closed in 1974 so none has been mined since and never will be again. This is a size 7.5 and is a big chunky piece! Looks great on! Lots of hand work detailing on this piece. See all photos. box 25 please no lowball offers, I paid up for this piece. I sell in my closet and have tons of other brands similar to list such as weiss, Stanley Hagler, Alice caviness, Demario, Navajo, James Avery, miriam haskell, Jomaz, hattie Carnegie, juliana, Lee sands, Barse, native American, Navajo, coro, vior,Donald stannard, lisner, renoir, Eisenberg, Christian dior,Givenchy, ciner, carolee's, hobe, Ben amun, Tiffany and co, Vendome, Alexis bittar, Judith jack, kjl, vargas, Sherman, Nolan Miller, Elsa peretti sharra Pagano, Jill Fagin, Jay feinberg, kenneth Jay lane, Germany, Japan, Hong Kong, Simon ju,