Sterling Akoya pearls and Swarowski(?) necklace

A very delicate necklace made of natural high luster Akoya pearls and very sparkly blue and transparent crystals. I believe these are Swarowski crystals judging by their high quality and that very characteristic spark. The Akoya pearls are of a more uneven raw shape that gives this necklace modern and fresh youthful look. 16" around the neck plus 1.5" the dangling part. In excellent condition. Stamped 925 on the closure (last photo).