「GEM」は FontVibe AI で作成したクリスタルの文字エフェクトです。純粋な宝石クリスタルから削り出した、ダイヤモンドカットのファセット面。鮮やかな虹色のプリズム分光と高級感あふれる輝きが特徴です。下面には集光模様が映し出されます。

carved from flawless gemstone crystal — each letterform cut with precision faceted geometry following brilliant-cut and emerald-cut diamond principles. Table facet, crown facets, girdle edge, pavilion facets all precisely rendered. Optically pure material: Brilliance (white light return), Fire (rainbow spectral dispersion), Scintillation (extreme facet contrast sparkle). Internal caustic corridors visible. Six-point sparkle flares at letter apexes. Maximum optical drama — every letter a dazzling cut precious gemstone. Wide 16:9. GEM as massive precision gemstone-cut crystal letterforms centered at 78% frame width. Deep midnight navy-to-black gradient background — the darkness of a high-end jeweler's vault. Single hard overhead pinpoint spotlight creating extreme facet contrast: table facets near-white brilliant, shadowed pavilion facets deep blue-violet. Sharp six-point star sparkle flares at each letter apex. Prismatic rainbow fire beams (red, orange, yellow, green, violet) radiating as sharp precise beams from crown facets across the dark background. Internal caustic corridors glowing from within each letter. The three letters float against the deep dark background like three dazzling cut diamonds in a velvet tray — each one refracting the pinpoint light into spectral brilliance.