White Onyx
White Onyx is a premium luxury stone renowned for its refined elegance and timeless appeal. Characterised by a luminous white base with soft beige undertones, this exquisite material brings a sense of warmth and depth to any space. Subtle, flowing veining enhances its ethereal, cloud-like appearance, making it an ideal choice for benchtops, feature walls and vanities, the perfect choice for high-end interiors seeking to make a bold yet graceful design statement.

Onyx Slabs

Looking to make a bold, unforgettable statement? Few materials match the beauty and drama of onyx slabs. Known for their vivid colour, striking veining, and natural translucency, onyx is more than just a stone — it’s a showpiece.

At Avant Stone, we offer one of Sydney’s most refined selections of premium onyx slabs, sourced from leading quarries around the world. Whether you’re designing a high-end residence, a luxury retail space, or a standout feature in a hospitality project, onyx offers something truly exceptional.

What Makes Onyx So Special?

Onyx is a rare, semi-precious stone formed from layered minerals over thousands of years. Its surface tells a story through bold patterns, soft gradients, and glowing tones. Unlike granite or marble, onyx can be backlit, creating a stunning, illuminated effect that enhances its natural beauty.

Designers and architects love working with onyx for its:

Translucent qualities – perfect for backlit applications
Vibrant colours and veining – each slab is one-of-a-kind
Luxurious presence – ideal for focal points and high-impact spaces
Smooth, polished finish – adds sophistication to any design

Why Avant Stone?

At Avant Stone, we don’t just sell stone, we help you make a lasting impression. Our team understands both the aesthetic and technical sides of working with premium stones like onyx. That’s why designers, builders, and homeowners across Sydney trust us with their most ambitious projects.

When you choose us, you get:

A premium collection of hand-selected onyx slabs
Expert guidance on application, installation, and maintenance
A Sydney-based showroom to view full slabs in person
Flexible order support for residential or commercial projects
Personalised service from people who care about your vision