When you purchase gold, you need to understand what you are actually purchasing. When you purchase jewelry, you will see terms such as "solid gold," "gold filled," and "gold plated." These three terms mean three different things, and it is important to understand what you are getting when you purchase jewelry.
#1 Solid Gold
As far as long-term value, solid gold is the way to go. Something that is solid gold is made entirely out of gold, through and through.