Pendant w large Turquoise Stone, Citrine, Hematite

Large beautiful statement pendant! I spent 6 months in Ecuador, South America & a friend there, Gustavo, handmade some jewelry for me. "Handmade" meaning no modern equipment, he had such talent! Measures about 2 1/4" without the loop for a chain. I believe it's marked sterling silver on back (can't find my magnifying glass & it's small lol). Look at the silver detail!