Rare Boho Sterling Onyx Two Finger Turtle Ring

Such an rare awesome two finger sterling silver turtle ring - A definite statement piece - A large 2-1/4” hand carved/etched turtle sits atop a two finger band ring - He has a nice prong set black onyx turtle shell - Nice well made piece - I can find no markings but had it tested and guaranteed sterling silver - Size 9.5 and 8.5 - In great pre-owned condition