This is a gorgeous necklace.  The Tourmaline has beautiful paraiba green color, the bead size is 10mm x 6mm.  Two small 4.2mm Ruby beads sitting aside.  !0k Hallmark.  The spring ring has unique construction, it has opened by pushing at a ring (old version of the spring ring)  The Rolo chain, the necklace is 16. 5" long