Vibrant oval cut blue topaz center stones with small but sparkly diamond halos— Marquis cut blue topaz stones found on the sides as well— totaling over 4.5 cts in blue topaz stones and approx  .10 tcw in diamonds

All adorned on a lovely Bismarck chain, small unnoticeable kinks when worn, appropriate with age and priced accordingly 

16 inches long and 1.4 mm wide (chain)

Top chain in worn photos, other chains sold separately 

7.21g