shimmering purple gemstone reflecting light with intricate cut patterns on a white backdrop

purple gemstone amethyst faceted gem jewelry luxury sparkle crystal cut patterns white background shine reflective cutting precious stones elegance vivid color brilliance display ornamental decorative light reflection clarity design jewel artistry fine charm collectibles polished surface exhibition rare craftsmanship mineral aesthetics natural stone geometry fashion accessories beauty style hue radiant shimmering reflecting intricate backdrop beautifully rests smooth capturing revealing stunning facets highlights facets gem generated