In most countries, it is illegal to sell counterfeit or deceptively marked jewelry. This includes selling jewelry that is not made of the materials that it is claimed to be made of. For example, selling jewelry that is marked "925 Italy" but is not actually made of sterling silver is illegal.
The specific laws regarding the sale of fake sterling silver vary from country to country. However, in most cases, it is considered a form of fraud to sell jewelry that is not what it is claimed to be. This can result in fines, imprisonment, or both.
In addition to the legal consequences, selling fake sterling silver can also damage your reputation and your business. If customers find out that you are selling fake jewelry, they are unlikely to trust you again. This can lead to lost sales and damage to your brand.
If you are considering selling sterling silver jewelry, it is important to make sure that it is genuine. You can do this by purchasing jewelry from a reputable supplier or by having it tested by a professional jeweler.