Diversify Your Investmennts With the Ultimate Hard Asset: Most of DWM's clients choose to add their purchase to their portfolio as a diversification from other investment instruments. Others hold on to their pieces as gifts or family heirlooms that are passed from generation to generation. Whatever the choice, DWM is both your source and your guide. Whether set in a fine piece of custom jewelry or safely secured in a GIA sealed casing, we believe that purchasing natural color diamonds may very well be the ultimate hard asset.