These are absolutely classic Moretti matte glass beads 1980's/1990's. I bought various colours (including these) wholesale from them for my business during that period and the sizes included this size (about 12mm) and an 8mm version. Blue and white, yellow and blue, burgundy/blue/white, orangey red with yellow, and these turquoise ones were the 5 main colours.
Hope that helps
Cheers
Carole