Art Deco geometrics and exemplary open work provide a foundation for an atypical and glorious ring of 14k white and yellow gold.
Each hair-fine inset of filigree must be seen to be truly appreciated. No jeweler today can come close to this level of craftsmanship. Inset within this is square natural blue sapphire of .20 carats.
It radiates with that special color of a Montana sapphire (the origin has not been tested however). A low profile makes it ultra comfortable and easy to wear.
Note that use of two colors of gold along with the lacy geometric filigree all mille grained (tiny beaded edges) for visual appeal. It is American in origin designed and created by the firm of Traub Manufacturing Co. (that much later became Jostens). The vintage ring dates to circa 1930.