Vintage Cobalt BEADED NECKLACE Venetian Murano Glass -OR- Cloisonné Style Clay ?

Gorgeous Vintage or Antique Cobalt Blue Beaded Necklace. Purchased at an antique shop in Lancaster, PA 20 or so yrs ago. THEY referred to it as “Antique oriental cloisonné style clay beads”. WE aren’t familiar w/that terminology, or beads. These also look so much like Venetian Murano glass beads as well. We just don’t know. WHAT DO *YOU* THINK THESE ARE? Beautiful blue, almost cobalt (see pix) We lean towards Vintage Venetian Murano Glass Beaded necklace… but can’t guarantee. Not modern. Esti 16.5”L Appear lightly decorated shiny beautiful beads; feel & look like glass to us. Beads close in shape/size, but not exact, slight differences. Besides shape/size, differences incl texture - while hard & smooth - also have mild dimples/divots/imperfections inherent to hand crafted glass, clay or natural substance. We just aren’t 💯 certain of material, not being jewelers/collectors. I do believe that collectors of Venetian glass or vintage clay necklaces would know! Excuse our ignorance. Brass or metal disc shaped spacers as well as what could be a lighter shade of blue glass (?) spacer beads. Closure ends appear brass. Believe functional closure part MIGHT be replaced, as not really a match - silver tone & could be more modern. Don’t see marks/signatures unless hidden. You’ll always find imperfections & wear w/vintage pieces. Am sure there are some losses, as well as scratches/etc. SEE PIX for general idea. 💯 As found, as is. Don’t know exact age, origin OR materials. NPC143