BEAUTIFUL NAVAJO TURQUOISE & STERLING PENDANT. I WAS TOLD THIS IS MOST LIKELY ROYSTON. IF THAT IS WRONG, PLEASE LET ME KNOW.   THERE ARE NO MARKS ON THIS PIECE.  WHEN I FOUND IT, THE LOOP HAD SEPARATED AT THE BASE,  SO I SQUEEZED IT BACK IN PLACE. WORKS FINE.  IT WEIGHS 19.4 GRAMS. MEASURES 1 1/2" WIDE AND ABOUT 1 7/8" LONG. THIS IS FROM AN OLD ESTATE.