Lovely Alwand Vahan Swiss Blue Topaz Pendant Necklace. The pendant has a bezel set Swiss Blue Topaz that is encircled by alternating bands of 10k yellow gold, and Sterling beads and a border with a rope design. The pendant is about 3/4 inch and is on a 17" sterling silver chain with a lobster claw clasp. The pendant is stamped in back with 925, 10k and AV. This piece is in good pre-owned condition with some scratching.