You are looking at a unique handmade sterling silver blue turquoise necklace. This necklace is completely hand soldered with a nice sterling silver look.   This blue turquoise stone is Turquoise from Nevada.   As you can see the turquoise stone is set into a nice bezel setting.  

Necklace Size:  Adjustable from 20" inches to 21" inches in length
Center Turquoise Stone Size:  15mm x 29mm  
Necklace Weight:  52.3 grams
Artist: Brent DeSantis