Designer 925 Sterling Silver Earrings With Black Tahitian Natural Pearls

One of a kind designer Brutalist sterling silver earrings with natural pearls. They look like Peacock Black Tahitian pearls and, to the best of my knowledge, are authentic. Stamped 925 and have a makers mark. I don't know enough to estimate their grade and current market value. But the pearl farms are now closing as most mollusks don't survive the ongoing environmental changes (microplastic in the ocean waters and wider range of temperature fluctuations).