There are materials that decorate a room, and then there are those that transform it. Onyx* belongs to the second category. It is luminous, memorable, and designed for homeowners who want a space that truly stands out.
What is an Onyx?
Onyx is a translucent natural stone that absorbs light and radiates it back, creating a luminous, captivating effect. Place an LED panel behind a slab, and the surface appears to glow from within, turning a wall or bar counter into something closer to art.
Its palette ranges from milky white and soft green to blush pink, though honeyed yellows and warm browns remain the enduring favorites. No two slabs are alike, each one veined like marble but lit like stained glass.
TLDR
Onyx is a soft, translucent natural stone that glows when lit from behind, which makes it the material of choice for feature walls, bar counters, and accent panels. It is rarer, more fragile, and more expensive than granite or quartz, and it needs sealing as often as every six months to stay protected.
Use it where it will be admired rather than tested, and pair it with a harder stone anywhere daily wear is a factor. Plan the lighting and access points before installation, because reaching a failed LED behind a sealed panel can mean dismantling the wall.
Where Does Onyx Come From?
Onyx is, in the most literal sense, a product of deep time. It forms within limestone caverns from mineral-rich calcium carbonate, the same patient chemistry that builds stalactites over millennia. That cave-born origin is precisely what gives each slab its flowing, unrepeatable veining.
The world’s finest onyx is drawn from only a handful of quarries across the globe, including:
- Afghanistan
- China
- Iran
- Mexico
- Morocco
- Pakistan
- Peru
- Turkey
Once the raw blocks are lifted from the earth, they are cut with diamond wire saws into thin sheets known as slabs. Each can measure anywhere from roughly 0.60m × 1.80m to 1.50m × 2.50m, depending on the season’s supply. Because every slab carries its own character, it is worth telling us exactly what you want the piece to do.
Is Onyx Durable?
Here, candor serves you better than romance. Onyx is exquisite, but it is also a fragile material, softer and more brittle than granite or quartz, and it requires genuine care during delivery, hauling, and installation.
It is also susceptible to etching, scratching, and staining, which is why it rewards thoughtful placement rather than hard daily use. Reserve it for the gentler corners of a room, feature walls, accent panels, and suspended ceilings, where it can be admired rather than tested.
Like marble, onyx is highly porous and benefits from sealing as often as every six months to protect it. For walls, Hydrex does the work beautifully; for any countertop application, reach for Proseal. Tend to it on schedule, and the stone holds its depth and luminosity for years to come.
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How Do You Care for Onyx?
A material this refined asks for a correspondingly gentle hand, much as fine marble does. The wrong cleaner can permanently dull its surface, so a little knowledge goes a long way.
Use only products formulated for natural stone, and resist the temptation of ordinary soap and water, which leaves the surface flat over time. Abrasive or acidic cleaners should never come near it. Once cleaned, dry the surface at once with a paper towel or a soft, lint-free cloth.
The single rule worth committing to memory is this: never let moisture linger on onyx. Because the stone is so porous, standing liquid is its one true adversary, so attend to spills the moment they appear.
How Much Does Onyx Cost?
Onyx sits, unapologetically, at the luxurious end of the natural-stone spectrum. Its rarity, the challenges of quarrying, and the precision required for fabrication all combine to set it apart from more commonplace materials.
Onyx costs around Php15,000 per square meter in the Philippines. The final figure depends on color, thickness, and slab availability, so it is worth requesting a quote once you have your measurements.
As a rule, onyx will cost you more than granite or marble, for the simple reason that it is scarcer and more exacting to produce. What you receive in return is a surface of mesmerizing, luminous beauty that no other stone can imitate. For those who value the singular over the standard, it is an investment that more than earns its keep.
Here's a Tip:
A backlit onyx feature wall is among the most arresting things a home can possess, but its success lies almost entirely in the planning. The lighting scheme, the panel layout, and the access points must all be resolved before a single slab is set.
Beyond budgeting generously, you will want a design and installation team that has genuinely done this before. The reasoning is wonderfully practical: should an LED strip fail behind a sealed onyx panel, reaching it to repair it can mean dismantling the entire wall. Plan it properly the first time, and you'll spare yourself an expensive lesson later.
Where to Buy Onyx in the Philippines?
Whether your eye is drawn to pink, honey, white, or green onyx, Stone Depot offers a considered selection of slabs, each high in quality and fair in price. This is a material that truly must be seen in person, lit and in the flesh, to be understood.
We warmly invite you to visit any of our slab yards and talk the piece through with our team. You will find us in:
- Cebu City
- Davao City
- Cagayan de Oro City
- Iloilo City
- Laguna
God said, 'Let there be light,' and there was light.
Frequently Asked Questions
Onyx is better suited to accents than to hardworking kitchen counters. Because it scratches, etches, and stains with ease, most homeowners reserve it for bar tops, islands, and feature walls, pairing it with granite or quartz where daily wear is a factor.
Yes, and this is precisely its signature. Onyx is naturally translucent, so an evenly spaced LED panel set behind the slab makes it glow from within, the very effect you admire in hotels and refined bars.
As a general rule, yes. Onyx is rarer and more demanding to quarry and fabricate, which places it above granite, quartz, and most marble in price.
Miguel Aquino
Miguel Aquino is the General Manager of Stone Depot, one of the Philippines' leading suppliers of granite, marble, and quartz. Since 2010, he has been in the stone industry, working for a similar company in Balintawak, Quezon City.
You can find him playing Magic: the Gathering at a hobby store every Friday night.