Horizon Stone · Quartz
Onyx Brown
Full Service — Installation
Our quartz range is available with full supply, templating, fabrication and installation across Portsmouth, Fareham, Gosport, Havant, Waterlooville, Chichester, Southampton and the surrounding area, with our services extending to Hampshire, Sussex, Surrey, Dorset and Berkshire . The reach of our installation service depends on the type of project — contact us to discuss your requirements.
Supply & Fabrication — UK Wide
Outside our installation area? We can fabricate quartz to your supplied template, or supply the stone directly as-is — anywhere in the UK . Learn more .
The Stone
See the natural beauty of Onyx Brown up close — the surface texture, colour depth, and veining that make this quartz unique.
A warm onyx-inspired quartz with soft flowing caramel and golden-brown veining across an off-white base.
Onyx Brown brings natural warmth and organic beauty with its soft flowing veining in caramel and golden-brown tones drifting across a warm off-white base. The gentle organic movement and earthy depth create a surface that feels inviting and grounded, perfect for kitchens and bathrooms seeking a warm, natural stone aesthetic. This polished quartz is composed of 93% natural stone and supplied in Jumbo 3200 x 1600 mm slabs at 20mm or 30mm thickness. Non-porous, stain-resistant, and backed by a 10-year warranty.
Available Finishes
Ideal For
Performance
How This Stone Performs
Hardness
5 out of 5
Stain Resistance
5 out of 5
UV Resistance
3 out of 5
Heat Resistance
3 out of 5
Scratch Resistance
5 out of 5
Interested in Onyx Brown?
Love this stone?
Get a free, no-obligation quote for Onyx Brown quartz. From template to installation, In2stone handles everything — so you can enjoy your new surface without the stress.
Frequently Asked
Questions About Onyx Brown
What does Onyx Brown look like?
Is Onyx Brown suitable for warm kitchens?
Is Onyx Brown easy to maintain?
How does Onyx Brown compare to Kavala Brown?
What warranty does Onyx Brown come with?
"Excellent Service and Beautiful Results - Highly Recommended! I recently had In2stone install new quartz worktops in my kitchen, and I couldn't be happier with the results. From start to finish, the experience was completely stress-free. The team was not only competitively priced but also incredibly friendly and professional throughout the entire process. They handled everything seamlessly - removing the existing sink, hob, and old laminate worktops before fitting the new quartz surfaces. The finished worktops are absolutely beautiful and have transformed my kitchen into a modern, minimalist space that I love spending time in. The quality of workmanship is outstanding, and the attention to detail really shows. I'm a very satisfied customer and would highly recommend In2stone to anyone considering new worktops. Well done to the entire team - you've exceeded my expectations!"— Ashley ChapmanGoogle Review
Why Choose Us
Why In2stone
Invisible Joins & Ogee Edging
The edge profiles and seamless joins other suppliers say they can't do? We do them every week.
"Other quartz suppliers weren't able to offer the ogee edging I wanted — In2stone could."
Olivia Tett
The Quote Is the Price
No hidden costs, no surprises. We consistently beat competitor quotes — even online discounters decline to match us.
"Beat 6 other companies by a mile. Even an online company that claims to beat any quote declined to."
Dean Fitzpatrick
Ian Answers the Phone
No answering machines or sales scripts. You'll speak to the people who'll actually work on your project.
"Ian always answered the phone or called me back — and that was before we even decided to use him."
Carly Rielly
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