Sterling Silver Green Onyx Y Necklace

Sterling silver Green Onyx Y necklace is marked 925 and offers adjustable lengths between 16 3/4 - 17 1/2 inches.  The drop pendant measures 1 3/4 inches by about 5/8 inch wide at the cluster.  The oval stones are about 8mm by 6mm.  The necklace weighs 20.9 grams and it is in excellent condition.  It is new old stock so it is unworn and unused.  Two of the links on the right side connecting the stones are backwards, so that the nubs are in the back.  I didn't notice until the last photo so they are as they should be in the last photo on the mannequin.