This style features sparkly silver and gold glitter, jewels, and sculptures. Subjects are set against a black background.
The effect can appear as photo-realistic, sculpture, or as an illustration. Here are some keywords you can add to your prompts to bring out the style more:
made of silver and gold glitter
made of silver and gold jewels
made of silver and gold jewels, glitter
sparkling jewels
sparkling silver and gold glitter
sparkling
opulent
You can also add other color names to your prompt to get more than just gold or silver.