Exceptional and rare collectors AAA jumbo size tourmaline barrel bead necklace

Exceptional, statement and rare, heirloom quality, investor and collectors' AAA jumbo size tourmaline barrel bead necklace.  Just wow!  Haven't seen like this one before, and I've been searching for similar ones and no luck.  These are top notch, gem quality stunners, clean, deep greens and pinks.  14KT gold clasp.

Length is 16".