Lost Wax Casting Big Cat Ring with Blue Gem Turquoise Size 11.5. 1970s

Vintage 1970s lost wax casting ring in solid sterling silver. I has three big around the rectangular turquoise stone. Shank has the design of branches or tree trunks. The turquoise has attributed of the Blue Gem mine and has light spider webbing. 

Size: 11.5 Face measures 3/4" wide. Old yellowed glue can be seen around the stone. Weight: 23.9 grams.