benitoite: a rare and radiant gem, it gleams with a dazzling sapphire blue, like a clear summer sky

artificial intelligence generated texture stone surface pattern mineral decorative light colours rock detail precious properties polished collection natural jewelry shine cut luster durability quality hardness shape design semiprecious clarity adornments crystal aesthetic translucent luxury accessories value gemology flawless refractive index dispersion cleavage fracture luminescence inclusions brilliance carat sparkle purity expensive fashion benitoite: rare radiant gem gleams dazzling sapphire blue like clear summer sky reminiscent skies pristine beauty treasure california's unique depths