6. Diamonds and Pearls
The traditional source of portable wealth, these commodities could easily serve as a currency for the ultra-affluent. Instead of using a charge card or check, they could toss down a few diamonds or other gemstones to pay for their stay in a six-star resort or the new BMW.
![Inception Date: <strong>May 3, 2011</strong><br/>Net assets: <strong>$1.8 million</strong><br/>Global X suggests that the fish trade is likely to increase in coming years as diets around the world continue to add more protein. This young fund tracks an in](https://cdn.thefiscaltimes.com/sites/default/files/styles/carousel/public/slideshows/08312011_ETF_Fishing_slideshow.jpg?itok=tkhRUoO5 "Global X Fishing Industry ETF (<a href="http://globalxfunds.com/FISN" target="_blank">FISN</a>)")