Investing in gold stocks could be a great way to diversify an investment portfolio. Because it gives investors a sector that typically has separate price movement compared to others in the market and is based on a commodity. Just recently, gold and silver stocks saw a surge in their share price after the news of airstrikes in the Middle East. When investors are fearful, they often turn away from average stocks toward an investment in precious metals.Below are three gold mining companies that have seen stron ...