Consiglio del giorno che ti può essere utile:
When selling gold, silver, platinum, or other precious metals to a gold and silver buyer, simply ask, “What percent of market price do you pay?” If they won't tell you an exact number, they are trying to scam you.
A typical good number is 60% of market. This takes into consideration they have to refine it, resell it, and get a reasonable profit. The % number is of the actual gold content. For instance 18K gold is 75% gold. So 60% of 75% is 45%. Meaning if you had 2 troy ounces of 18K gold you should be paid for 0.9 troy ounces at the then market price. Similar for other metals.