flowing like a waterfall from the center of the ring

The Belcher mounting

Marks: "14K A/@" Stamped on the inside band

and it also would make a lovely component for a custom necklace or bracelet as well

Polished Gold Turquoise Bypass Ring Dinosaur Bone flowing like a waterfall fromThis turquoise cabochon ring features smoothly curved shoulders that wrap around the center gem to form the bypass mounting, giving the ring a subtle asymmetrical design. This style is called a bypass. Bypass rings became popular during the Victorian era and were worn to represent two souls coming together as one. This yellow gold mounting is the perfect combination of modern size and antique design. Metal: 14K Yellow Gold Gem: Turquoise 1. 05 Carats