Stella & Dot Costa Necklace Turquoise tassel Stella and Dot Necklace. Semi precious amazonite beads mixed with cool colors and a soft turquoise tassel create this layered versatile look. Tassel clips off to be worn on the bottom, side, or completely removed. Semi Shiny Silver Plating. 32 1/2" with 2" extender. Lobster clasp closure.