The Opal Glass Block is a hollow unit at 190x190x90mm, sold six pieces per box, with a large-scale prismatic surface pattern — bold, large, angular diamond-cut facets pressed firmly across the entire full face, considerably larger and more visually dramatic in scale than the finer, denser faceting seen on Fine Gem elsewhere in the same range. Like every single pattern in the Clear Glass Blocks line, it retains the sealed internal air chamber that provides genuine thermal and acoustic insulation.

The large facet scale is Opal's defining characteristic: where a finer pattern like Fine Gem produces a more uniform, all-over sparkle, Opal's bigger angular planes catch and refract light in bolder, more individually visible flashes as a viewer moves past the installation, each large facet briefly catching a bright highlight before the eye naturally transitions to the next facet in sequence. This makes Opal a particularly dynamic and visually engaging choice for a wall viewed from a walking path or stairwell, where the changing viewing angle is part of the intended experience rather than a static, single-viewpoint feature.

Despite the name, Opal's effect is prismatic and faceted rather than the milky, opalescent colour-play the name might suggest — this is a clear glass pattern defined by its geometric cut rather than an inherent colour shift, distinct from the gemstone association the name evokes.

Hollow glass block, 190x190x90mm, 6 pieces per box. Dispatched from Bengaluru. All India delivery. WhatsApp +91 94484 64040.

How does Opal's faceted pattern differ from Fine Gem's within the same Clear Glass Blocks range?

Opal uses considerably larger, bolder angular facets than Fine Gem's finer, denser faceting. This produces a more dynamic effect with individually visible light flashes as a viewer moves past, compared to Fine Gem's more uniform, all-over sparkle from smaller repeated facets.

Does Opal Glass Block have the milky, colour-shifting quality associated with opal gemstones?

No — despite the name, Opal's effect comes from its large prismatic facet cut refracting light at different angles, not from any inherent colour-shifting quality. It remains a clear glass pattern, with the visual drama coming entirely from geometry rather than colour. A stairwell, corridor, or any wall regularly experienced in motion rather than from one seated vantage point is where Opal's large-facet design pays off most visibly, since the pattern is specifically engineered around a changing viewing angle rather than being designed around a single fixed sightline alone.