"Swiss Blue Topaz Necklace - Silver Argentium - 3460 - Argentium Chain Included A contemporary, yet timeless design by award winning designer, David Worcester. ( IMPORTANT - PLEASE READ 1. AND 2 BELOW ) 1.) INCLUDED IN THE PRICE IS AN ARGENTIUM SILVER CHAIN APPROPRIATE FOR THE PENDANT CHOSEN. YOU CAN CHOOSE FROM 16\", 18\" OR 20\" LENGTH AT CHECKOUT. 2.) PLEASE LOOK AT THE MEASUREMENTS CAREFULLY. SOME PHOTOS HAVE BEEN ENLARGED TO SHOW DETAIL, WHILE OTHERS HAVE BEEN MINIMIZED TO FIT THE…