Fast Money trader Eric Bolling is bullish on diamonds. Appearing on CNBC's High Net Worth with Tyler Mathisen, Bolling recommends buying diamonds ... the gems, not the exchange-traded fund .. as an investment. He says forecasts call for 30% to 40% appreciation over the next 5 years, but only for larger, high-end stones.
What do you need to know before you buy? Watch this CNBC.com Web-Only Video for Eric's tips.
In the clip, Eric recommends doing your homework before buying diamonds. The specific web sites he likes are: and .
Watch High Net Worth every Sunday at 8PM and 11PM ET on CNBC.