elegant and iridescent, an open univalve shells cradle lustrous pearls. natural masterpiece born of the ocean depths

pearl shell oyster beautiful illustration sea ocean seashell element icon water treasure beauty jewelry natural marine mollusk shiny luxury summer beach vector isolated nature tropical jewel scallop fantasy shellfish shape wildlife gift inside animal graphic design white background univalve nautical underwater aquatic coastal seaside decorative gem exquisite exotic aquamarine seafloor