American half wedding ring in yellow gold, diamonds and sapphires

American half wedding ring in 18k (750°/°°) yellow gold set with alternating 4 brilliant-cut diamonds weighing approximately 0.025 ct each (H SI) for a total weight of approximately 0.1 ct and 5 sapphires.
Vintage French work.

Finger size: 53, sizing possible
Gross weight: 1.78 grams