How to be an intelligent buyer while purchasing gemstones?

Semi-precious stones or precious gemstones may have all four Cs and high prices, but when you try to resell these stones, you may fail to fetch the best price. These kinds of gems are often called investment grades.Many gemstone dealers have good connections with retailers such as jewellers who get in touch with them when needed. If the jeweller finds a willing buyer, he will pay the wholesale price.