Leslie's Italy 14K yellow gold chain omega style. There are no flaws that I can see. The chain is 18 inches, tip to tip. It would not all fit on the scale (see photos), so I am saying the weight is approximately 16 grams. This was purchased many years ago at Hines Goldsmiths in Jackson, Wyoming. The recent verbal appraisal came in at $2000. Please note the case is for display only and does NOT come with the chain.