Why is gold worth more than platinum (by weight), currently?

Simply because of basic economics, supply and demand. Platinum is more rare - but currently gold is in higher demand which is tightening up supply which is driving up prices. Platinum will eventually be more expensive than gold again - these cycles are normal over the long run. read more

Gold is more currently because of rarity of use. The more people stockpile (by people I mean countries, etc) the value will rise, esp. when folks get worried about paper monies. Also, funds buy precious minerals and gold is on the list. read more

Platinum is more valuable than gold as it is not only heavier but for e.g. when platinum is used in a ring, 95% of the metal is platinum, whereas when 14 k gold is used, it is only 58.3% as the rest is mixed with other metals to make it stronger. read more

Platinum is normally worth more than gold, but economic uncertainty can reverse that. In 2011, platinum cheaper than gold coincided with turmoil in the stock market and economy. The current course of events resembles the one in 2011, but could turn out differently. read more