Jewelery made in Italy, entirely made of hypoallergenic 925 silver. Due to the different supplies, the shape of the sticker (the part that contains the 925 mark) can be oval or square, hexagonal, etc. We have various lengths and thicknesses. ND15 = 1.5 mm chain which, undergoing the diamond-cutting process, has a final thickness of approximately 0.8 mm while maintaining the resistance of a 1.5 mm chain diamond cutting is a technique that removes a small part of silver creating a "mirrored" side, therefore it does not remove resistance from the jewel but only volume, creating a luminous effect of unquestionable value. - Yellow Gold (925 silver chain with real yellow gold plating) * information on use: Yellow and rose gold are baths, that is, layers of galvanic applied to the jewel. Over time or in contact with very corrosive elements they tend to fade and the treated parts tend to return to the color of silver. It is recommended to follow the instructions for use sent with the jewel.