Precious metals such as gold have had a long history as a form of investment. Gold and silver are recognized alongside global currencies as good components of a diversified portfolio. It is usually recommended by most financial advisors to have at least 10% of your net worth as an investor in form of gold or silver assets.Gold prices have risen steadily over the years to record all-time high market prices. Knowing which companies offer the best services when it comes to the buying experience is important. The services offered by dealers include purchasing, storing and brokerage of the gold bullion. However, the services each retailer have on offer vary depending on their focus and their customer needs.Bullion refers to a precious metal whose value is only based on the weight and purity of the bullion in question be it gold, silver or platinum among others. When you want to buy gold bullion, going online seems to be a convenient option. The best prices are found online and largely so because they do not grapple with the costs of overhead and volume. The brick and mortar costs do not apply to online gold bullion retailers.