via Bloomberg - German Bund Yields

Negative nominal rates on German Bund yields up to the 2-year bond will easily support gold prices.

Note that there was no utter collapse of the world financial system with negative nominal rates in Germany. This will be eventually required in the whole Eurozone.

As of this writing, gold prices jumped back to their previous price above the $1600/oz. mark.

http://www.bloomberg.com/markets/rates-bonds/government-bonds/germany/

-F6