that which relates to wealth, money, or one's value;
e.g. Gold bars are reserved for those in the upper-echelon of wealth.
(noun)
a heavy yellow metallic element of great value, with atomic number 79 and symbol Au, that occurs naturally in pure form and is used especially in coins, jewelry, and electronics;
e.g. The necklace is made of real gold so it should be quite valuable.
(adjective)
a deep lustrous yellow color, resembling the metal gold.