3 Production Sites in Guangdong, China · 10,000+ m² Slabs in Ready Stock · Factory-Direct Export
G-Stone makes custom quartz slabs from a natural stone you pick. Send us the slab, an offcut or a photograph, and we reproduce the face in engineered quartz to about 98 percent of the original, then press it in volume for as long as you keep ordering. Three sampling rounds get us to that level. Cutting the mould takes about a week, with several adjustments along the way.
A natural stone slab is one of a kind. The block it came from is finite, the next block looks different, and once it is sold there is no second one. If you have found a face that sells — a marble, a quartzite, a granite — the only way to keep selling it is to reproduce it in engineered quartz.
That is what our custom quartz slabs do. We take the stone you have chosen, develop the pigments and the mould that reproduce its face, and then press it on our lines at 3,200 × 1,600 mm, to the same recipe, batch after batch, year after year.
It is not a size service and it is not a cut-to-size service. It is the design itself — the colour, the vein, the aggregate — made repeatable.
If a hundred distributors stock the same slab from the same factories, the only thing left to compete on is price. A custom quartz design that exists nowhere else takes you out of that argument entirely.
Interiors run on colour cycles. When the market turns warm, the distributor who can put a warm slab on the floor that season wins the specification. Waiting for a factory to publish one is always late.
Natural blocks finish. A quartz design does not. You can quote the same slab to the same architect three years later and deliver it from the same recipe.
For custom quartz slabs we quote 98 percent, not 100. The last two percent is where engineered stone and natural stone part company — depth, translucency and the small accidents of a block cannot be fully reproduced.
The result is an engineered stone, so it is tested as one: flexural strength, for example, is measured to EN 14617-2 for agglomerated stone, not to the natural-stone standards.
| What we need from you | A slab, an offcut, or a high-resolution photograph. A physical sample is better. |
| Why a physical sample is better | A photograph cannot reproduce the natural stone one hundred percent. Colour shifts with the light it was shot in, and depth and translucency do not survive a camera. |
| Mould making | About one week, with several rounds of adjustment before it is right. |
| Sampling | Three rounds to reach 98 percent. You sign off on a physical sample, not a picture. |
| Slab size | 3,200 × 1,600 mm as pressed, or cut to your sizes afterwards. |
| Repeatability | Once the recipe and the mould for your custom quartz are fixed, the same design is pressed on every run. Colour is consistent within a batch; a later batch can differ slightly, so order in full from one batch or ask us for a sample to match colour first. |
Custom quartz slabs are built for distributors, importers and project buyers who will keep ordering the design. Developing a recipe and a mould is real work, and it only makes sense on both sides if the design goes on selling.
If you need one or two slabs of a particular look, this is the wrong service and we will say so. For a small quantity, printed quartz is the right route — ink-penetration printing takes the pattern 0.5–1 mm into the face of the slab rather than building it into a mould, so there is no tooling to pay for and no minimum development run.
We would rather point you to the method that fits than take an order that disappoints you.
The raw materials are the same everywhere. What separates factories that make custom quartz is whether they can hit a colour and hold it.
Reading a natural face and deciding how it has to be rebuilt — which veins carry the look, which can be simplified, how the pattern has to repeat across a 3.2 metre slab without reading as a repeat.
When we make custom quartz slabs, the mould is what puts the vein where it belongs. Cutting one takes a week and several corrections, and a plant that cannot make its own moulds is dependent on whoever does.
Matching a colour once is not difficult. Keeping it close on every run of a custom quartz design, after the pigment lot changes and the season changes, is the part that takes ten lines and years of records.
In most cases, yes. We reproduce the face of a marble, quartzite or granite in engineered quartz to about 98 percent of the original, then press it in volume for as long as you keep ordering. The last two percent is depth, translucency and the small accidents of a block, which engineered stone cannot fully reproduce.
About 98 percent of the original, reached in three sampling rounds, and you sign off on a physical sample before production, not on a picture. Because the result is an engineered stone, it is tested as one: flexural strength, for example, is measured to EN 14617-2 for agglomerated stone rather than to the natural-stone standards.
A photograph is enough to start, but a physical slab or offcut gives a better result. A photo cannot reproduce the natural stone one hundred percent: colour shifts with the light it was shot in, and depth and translucency do not survive a camera. A high-resolution photograph starts the conversation; a slab or an offcut finishes it.
Cutting the mould takes about a week, with several rounds of adjustment, and sampling then runs three rounds to reach the 98 percent match. Once you approve the physical sample, the design goes into normal production scheduling, and a run pressed to order takes about 30 days from there.
A newly developed design that reproduces a natural stone starts at 5,000 m² a year, because the service is built for distributors, importers and project buyers who will keep ordering it. Matching a Pantone, RAL or physical colour reference is ordinary made-to-order work from one container. For one or two slabs of a look, Printed Quartz starts from a single slab, with no mould to pay for.
Yes, if you tell us at the quotation stage; exclusivity on a developed design is agreed in writing before the mould is cut. A design that no other distributor stocks takes you out of competing on price, and you can quote the same slab to the same architect three years later.
Custom designs are pressed at 3,200 × 1,600 mm on our lines, at thicknesses of 15, 20, 25 and 30 mm, with a polished or honed face. Part of the design work is deciding how the pattern repeats across a 3.2 metre slab without reading as a repeat. If you need finished pieces, we cut them to your sizes in the same factory.
Within one production batch the colour is consistent. Once the recipe and mould are fixed, later runs are pressed to the same recipe, but a repeat order from a later batch can still show a slight shade difference. Order a whole project from one batch, or send us a sample from the earlier job so we match against it before pressing. That is still more dependable than natural blocks, which run out.
A photograph starts the conversation. A slab or an offcut finishes it. Tell us the design and the volume you expect to move, and we will tell you honestly whether a custom quartz mould or printed quartz is the right route.
Stock availability, factory pricing, lead time and container loading advice, straight from our export team.
Samples are free. For serious buyers, we can also cover the courier cost, subject to G-Stone’s approval. Tell us where to send it — we reply within 24 hours.