stunning closeup of polished alexandrite gemstone on white background

alexandrite gemstone polished crystal mineral closeup faceted vibrant purple green yellow clarity isolated white background exquisite intricate pristine specimen photography macro jewel natural gem stones geology lithology precious collectible gemology luxury treasure sparkle vivid elegant decorative mineralogy beauty fine crystalline dazzling gemquality colorful artistic shiny raw detail unique allure fascinating refined brilliance optical stunning bright item pure ai generated