It is an authentic vintage in excellent condition AA quality green (most likely Siberian) nephrite jade necklace! this necklace was professionally tested by local GIA graduate gemologist and found to be natural nephrite jade! you will be very happy to have it -it is magnificent and it is a really the one you would want to own if you like green translucent Jade! ?Siberian nephrite, with a dark ?spinach green? color and black graphite inclusions, is considered the most valuable green nephrite variety.? Has a RARE type of clasp - a solid 14k golden tube is inserted inside of one bead!! Made of solid 14k yellow gold and hallmarked 14k! Works well! Beads are translucent and are approx 9mm. Necklace is approx 18". the necklace has no problems and looks like in original condition -never been restrung! It does not need to be restrung and have NO damage of any kind! Can be worn/ gifted immediately! fast free USA priority! fast international delvery! smoke free environment! thank you!? ? a little about Siberian Jade: Russia has vast resources of brilliant green and immaculate white Nephrite jade and its artist have been busy transforming it into beautiful objects of art. The best known sources of such objects of art in Russian nephrite jade are the workshops of Carl Faberge (in 19th century he has much used a TRUNSLUCENT nephrite with black inclusions coming from Russia), Cartier in Paris and Dennisow-Uralski, the supplier of raw and finished hardstone objects from Siberia.