Solid Black K9 Optical Crystal Cubes (Available in 40mm to 100mm)

Elevate your design aesthetic with our Black K9 Optical Crystal Cubes. Unlike standard clear crystal, these solid black blocks offer a deep, opaque, and lustrous finish that mimics the look of obsidian or black onyx. Available in a comprehensive range of sizes—40mm (1.5"), 50mm (2"), 60mm (2.35"), 70mm (2.75"), 80mm (3.15"), 90mm (3.25"), and 100mm (4")—they are perfect as standalone decorative pieces or as heavy-duty bases for prestigious trophies. Each cube is precision-cut from Grade A black optical glass and polished to a mirror-like shine on all six sides. While they are not suitable for internal 3D laser etching due to their opacity, they provide a stunning canvas for silver/gold color-fill sandblasting and surface UV printing.

Item No.: BLACK-CRYSTAL-19001

Material: Black K9 Crystal Glass

Size:  40mm (1.5"), 50mm (2"), 60mm (2.35"), 70mm (2.75"), 80mm (3.15"), 90mm (3.25"), 100mm (4")

Custom Shape & Size Available