Hello. I want to give my mother a thin chain of gold whiting davis necklace and a pendant. The width of the chains is minimal is 1 mm yes? I read on the Internet that in order for the chain not to break from the weight, you have to buy a pendant weighing two times smaller than the chain, is that so? and more, what kind of weaving or advise you to purchase a chain that would be strong and thin? and what weight should it be about? I want a length of 40 cm. I want such a short length because it’s not customary to wear chains over clothes, right? Thank you very much for the answers!