I wanted to replace a Singapore necklace I lost but did not want to pay a lot and this fit the bill.  It is very thin but has enough sparkle to see.  I knew a 1mm would be thin and think for the price it is lovely.  You just need to know what to expect.  Seems strong enough;  I would give it a 5 but the spring ring is tiny and a bit hard to put on. Otherwise no complaints and I am well pleased.  Would buy again...