Arrived quickly from amazon. The chain is exactly as expected. The 3.1mm is thick, so please make sure you are aware just how thick 3.1mm really is. If you have a large pendant, then this is the type of chain you are looking for. Because it is diamond cut, it does have a bit of a shimmer to it. The clasp is very solid and well built and if the side links should break, this should be a very easy fix at the jewelers. Good deal if you are looking for a thicker chain.