Golden (adjective)

1. Made of or coloured with gold.
2. Rich and prosperous.
3. Of the finest quality; highly prized.
4. A period of great happiness, success, or prosperity.

Origin:

Old english geolu, geolwe (adjective), geolwan (verb), of germanic origin; related to yellow.

Examples:

1. She wore a golden necklace.
2. The company had a golden opportunity to expand.
3. The 1950s were considered a golden age of American prosperity.
4. His voice was golden, a smooth baritone.
5. They enjoyed a golden era of success and prosperity.