K14 gold has superior quality and adds more value to jewelry. Also, these jewels do not change color. On the contrary, the jewelry with gold k9 is inferior as after a while they change color, sometimes they turn black and acquire a bad appearance.
Silver is a precious metal and has a resale value, while steel is a product of wrought iron without a resale value.
The rings can be adjusted to the desired size and take a few days to modify. For up to three (3) numbers in the ring there is no extra charge. Over 3 numbers the charge ranges from 5 € to 15 € depending on the final size.