I love the combination of turquoise and silver. Here, I've created an alternating A/B pattern using vintage silver washed beads and turquoise teardrop beads.  I used a large 3 hole round clasp (1 hole on one side and 2 holes on the other) and attached the two strands on the necklace. Next, I attached chain using a open jump ring. I finished it off by adding a tbar and round clasp. Voila!