The one above is the "Tanzanite" (Necklace 1).

Necklace 2 has Lavender gem and drops down on the neckline more. Necklace 1 is on the right, curled up. Both necklaces are available in either Lavender or Tanzanite, and they each have earrings that match in color and gem shape. There is also a matching bracelet available, but it's only available in the round gem shape of Necklace 1.

Necklace 1, Necklace 2, neckline shots.