Oxidation is the process of plating metal by oxides them. As a result, oxidized products are protected against corrosion. They have black, interesting appearance and are more resistant to external factors.
Decorative stones created in lab.
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Polish Hallmarking Law does not require hallmarking of silver jewelry, which weigh does not exceeds 5g of silver in one pice of jewelry. The product has been marked with the manufacturer's namesake, which testifies to the authenticity of the raw material used to produce it.