Size 9 Sterling Sapphire Modernist Ring - Mid Century order Design

Measures size 9, of sterling silver with 6 faceted round dark blue sapphires, this ring has a modernist design, with a curved section of sapphires, and a swirling loop on one side.
Stamped 925 and two initials order, which may be CC, but it is not clear.
The silver has a lot of wear and some tarnish, as is visible in close up photos, but is not obvious without magnification.
Shipping via USPS priority mail.