High Quality 14K Solid White Gold Curb Chain, available in 18, 20, 22, 24 and 26 inch lengths.
4mm wide (actual current width is 3.9mm).
Includes secure lobster claw clasp.
Chain weighs approx:
18 inches - 11.26 grams
20 inches - 12.32 grams
22 inches - 13.85 grams
24 inches - 14.73 grams
26 inches - 15.75 grams
Also available in 14k yellow gold, shown below.