Graduated Hand Knotted Turquoise Beaded Necklace, 18 Inches Turquoise has been worn in jewelry for 3000 years and gem quality turquoise is rare. SuperJeweler sells reconstituted turquoise, wherein fragments of fine turquoise material that are too small to be used individually, are powdered and then bonded to form a solid mass. Reconstituted turquoise is beautiful and safe to wear. Turquoise has been worn in jewelry for 3000 years and gem quality turquoise is rare. SuperJeweler sells reconstituted turquoise, wherein fragments of fine turquoise material that are too small to be used individually, are powdered and then bonded to form a solid mass. Reconstituted turquoise is beautiful and safe to wear. Turquoise has been worn in jewelry for 3000 years and gem quality turquoise is rare. SuperJeweler sells reconstituted turquoise, wherein fragments of fine turquoise material that are too small to be used individually, are powdered and then bonded to form a solid mass. Reconstituted turquoise is beautiful and safe to wear.