To Carine and Victoria: The amazonite idea didn't quite work out because it looked similar to the Turqoise, and colour is also too close to Aventurine.
So here I am with the combination of Aventurine, Iolite (or Tazanite?) and white pearls. Anyway it's important to know that these tiny 2mm beads are even more expensive than 3mm ones because they are difficult to make (too small to drill holes thru). As in the previous pair, parts are in sterling silver. Neat and sweet looking.