Concerning speculative capital transference, exchange rate variation, interest rate variation, gold value variation, securities price variation and commodity price variation.

投机性资本流动，包括汇率变动、利率变动、金价变动、证券价格变动和商品价格变动。

youdao

Platinum exceeds gold in value.

白金的价值高于黄金。

《新英汉大辞典》

youdao

In the United States in the early eighteen hundreds, fifteen ounces of silver had the same value as one ounce of gold.

VOA: special.2010.06.17

At that time, both gold and silver were used to support the value of the American dollar.

VOA: special.2010.06.24

They believed the gold standard would keep the value of the dollar high.

VOA: special.2010.06.17

In practice, a gold value link has been the most effective way of achieving this goal.

FORBES: My Thoughts On Lewis Lehrman's Gold Standard

You can see below the strong correlation between the rising U.S. monetary base and growing gold value.

FORBES: All Signs Point To Gold

For investors, coins are commonly bought from private dealers at a premium of about 1-5% above their underlying gold value.

FORBES: Getting Into The Gold Market