Vintage blue beaded necklace with CZ accents

silver tone hook closure blue transparent beads dusty/matte blue, slightly metallic beads silver tone donut beads with clear cz's unbranded vintage 3 strand 17 1/4" length Was my grandmother's. Noted flaws-minor tarnish on hook and decorative joiners. A few transparent beads have internal cracks. Some pf the matte beads have scrapes and marks on them. Otherwise, for its age, good condition.