huge genuine turquoise ring 3 stone unmarked

this is a whopper of a ring weighing in at over 48 grams on my scale. it is a long hefty ring unmarked but when i purchased it way back when i was told it was sterling silver and bisbee turquoise from a reputable jeweler. it has 3 beautiful stones natural inclusions and veining purplish brown colors and blues and greens. this is a magnificent piece .please let me know if you have questions. rope designs and leaves as well as silver balls adorn the stones and the band. looks Navajo but unmarked.