All of our jewelry is guaranteed authentic by our Graduate Gemologist of the Gemological Institute of America (GIA). Double Strand Kingman Genuine Turquoise 8mm Strand of Beads Necklace 19" #J7328 A double strand of American turquoise beads. This is Kingman turquoise from Arizona, which is the last full-time production mine in the US. The beads have a greenish-blue color with some variation. There is some rust veining. They are round cut measuring 8mm. The strand is freshly strung with a 14k yellow gold clasp and measures 17 3/4" and 19". It weighs 41.7 dwt., and is contemporary. Pretty! SKU#J7328. 100% Satisfaction Guaranteed!