green transparent onyx: a semi-precious gemstone slab

green transparent onyx gemstone natural stone translucent semiprecious mineral unique patterns decorative interior design luxury exquisite hue home decor ornamental elegant exclusive marble alternative surface material beauty bespoke customized polished sophisticated applications backlit premium quality architectural elements refined elegance accents light penetration luminous interiors countertops detailing artistic luxurious ambiance veining custom onyx: semi-precious slab captivating emerald hues distinctive patterns ideal adds refinement luminosity creating