Enter the dollar value only.
Gold and silver that you own in any form is subject to Zakat according to its weight value. Gold and silver can be valued by its weight and resale value by a jeweler or you can multiply the number of grams (of gold or silver) that you own by the current market value.
This includes any jewelry, coins, ornaments, etc. made of gold or silver. There is a difference of scholarly opinion regarding whether Zakat is due on jewelry kept for personal use vs. that which is kept as an investment or to sell, however it is safer to pay Zakat on all gold or silver jewelry.
For personal use items made from a mixture of metals, these are only subject to Zakat if 50% or more of the metal is gold or silver, although some scholars hold that the proportion of gold or silver in any owned asset is subject to Zakat.
Precious gems and other metals are not subject to Zakat.