16" + 2" Freeform Faceted Turquoise Necklace 16" + 2" extension rhodium plated sterling silver necklace with round freeform faceted reconstituted turquoise. The faceted turquoise measures approximately 13mm. The necklace has a lobster clasp closure. The beautiful freeform facet cut gives stones extra brilliance, with lots of random cuts along the top of the stones. .925 Sterling Silver