Vintage Sterling & Turquoise Ring Size 7

Rare and unique vintage silver ring with 4 elongated cabochons of turquoise set in bezels arranged diagonally and stamped accents on the sides. One stone is missing and band is not perfectly round but doesnt take away from its beauty. Size 7. Price reflects. Stamped Sterling and there is a makers mark maybe Bell Trading Post arrow sign but difficult to distinguish. May be from the 1960’s. Weighs 0.111 ounces.