lustrous pearl nestled in ornate seashell against sandy bottom, tranquil undersea light filtering through water, of purity

pearl seashell underwater ocean treasure marine elegance serene aquatic scene precious gemstone mollusk habitat natural beauty rarity luxury sandy bottom tranquil light purity wealth depths sea bed closeup detail ornate iridescent found nacre bivalve filtering seabed submerged life lustrous nestled shell pearlized captured shellfish water symbol floor oceanic gem undersea close-up ground