The golden stone of Siena, at the price that scale makes possible.
Giallo Siena is a deep ochre-yellow marble with yellow veining and, in places, pale reddish patches. We buy it in volume and redistribute it: the purchasing scale is what makes the buying price work, and the buying price is what makes the selling price work.
- Stock held
- 3000 m²in our own warehouse
- Thickness held
- 15 mm · 18 mm · 20 mmstandard stock
- Water absorption
- 0.04% to 0.12% (published values across sources)EN 13755-08
- Apparent density
- 2710 kg/m³ (both published sources agree)EN 1936-07
What one stone does in a room
Published installations of Giallo Siena marble — a bar counter with the floor bookmatched under it, a panelled wall behind a reception, a fireplace surround, a table top, and a wall lining polished to a mirror. Every picture carries its label on the picture itself: the stone is in place, the work behind installations like these is what we supply, and the colour on a screen is not a colour-match.
Reference photographThe stone carried across a showroom floor and up the wall behind it, cut as one matched run.
Giallo Siena marble in place · the stone and the work behind it are what we supply · screen colour is not a colour-match
Reference photographA reception lined and framed in one material: the arch, the wall behind it, and the counter inside it.
Giallo Siena marble in place · the stone and the work behind it are what we supply · screen colour is not a colour-match
Reference photographA full-height feature wall, booked so the figure reads as one field rather than a repeating pattern.
Giallo Siena marble in place · the stone and the work behind it are what we supply · screen colour is not a colour-match
Reference photographThe stone as a table top, cut as one slab with the figure running across the whole top.
Giallo Siena marble in place · the stone and the work behind it are what we supply · screen colour is not a colour-match
Reference photographA wall lining polished to a mirror, with the mall reflected back out of it.
Giallo Siena marble in place · the stone and the work behind it are what we supply · screen colour is not a colour-match
What we hold, in our own warehouse
This material is held as slab, in three thicknesses, at sizes that are not one number but a band in two directions. A cut list is checked against the physical stock before it is priced, because a slab size is a band and not a fixed figure. What is actually on hand is on the availability page.
The 3,000 m² is a surface measure. How many slabs that represents depends on the dimensions of the pieces, so we do not quote a slab count against it.
Our own workshop- Thickness held: 15 mm, 18 mm and 20 mm.
- Slab length: 1500 to 3200 mm. Slab width: 1200 to 2000 mm.
- 3,000 m² held in our own warehouse.
- Stock confirmed against the physical warehouse at the time of enquiry.
The trade facts
These are the figures a customs broker asks for before the first container. They are stated here so that they are not a question at the last minute.
Our own workshopHS classification
The classification of natural stone follows how far the stone has been worked, not the name of the stone and not the colour. A slab that has been sawn into a rectangular shape and a slab that has been polished and cut to size are declared under different lines, and the invoice carries the line that matches the goods that actually ship.
Our own workshopHow it travels
Slabs travel on edge, never flat. Each face is separated so polished surfaces do not rub against each other, the bundle is compressed and banded at high tension, and the whole closes into a heat-treated wooden crate carrying the ISPM-15 mark. Cut-to-size tiles go into cartons on a pallet. Custom pieces are crated on their own.
Our own workshopWhere it goes from
Dispatch is from our processing base in the Shunde and Yunfu cluster, and the loading port is chosen against the shipping line. Terms are quoted FOB or CIF against the destination. The stone is quarried in Tuscany and the processing is done in China — two separate places, and we do not merge them.
A sample before the order
A sample piece is cut from the stock itself, so what arrives is the material that would be supplied rather than a photograph of it. Sample cost and carriage are quoted with the request.
The classification, line by line
How the price is made
We buy across many orders rather than one, and we pass the result on. Volume purchased sets the acquisition price; the acquisition price sets the supply price. What reaches you is the outcome of aggregated demand, handled in one chain — sourcing, processing and delivery held together rather than passed down through intermediaries.
Collected procurement across many orders, not a single block
Deep resource integration: sourcing, processing and delivery in one chain
The price advantage comes from the purchase, and is visible in the supply
Worldwide redistribution to trade customers
Our own workshopWhat the published record says
One page, the numbers a contractor needs before the order. Everything here is read out of the station own facts, so it cannot drift from the rest of the site. Print it, put it in the file, send it to the installer.
Test values attributed to the marble laboratory of the Politecnico di Torino. Where a figure is ours rather than published, it is marked as ours.
Our own workshopSovicille, in the province of Siena
Our own workshopThe quarries sit in Tuscany, in the province whose city gave the stone its name. This yellow marble was laid in the Duomo di Siena and carried to the Reggia di Caserta; in the Veneto it appears in the Basilica di San Marco and in Teatro La Fenice. It formed in the Jurassic as calcareous sediment, and the pressure and heat of that period are what turned it into the compact rock you cut today.
Rock
A medium-grained dark yellow metamorphic lithotype, heterogeneous because of light yellow-reddish patches, fractures, and slender veins that are sub-parallel and locally stylolitic.
[S1] macroscopic description
Worked stone
A calcitic crystalloblastic lithotype with alternating phaneritic and aphanitic areas. Quartz blasts occur along the coarser veins; locally there are calcitic nodules of nearly centimetric size, with millimetric calcite blasts and associated quartz blasts. Traces of relict stylolitic texture, minute opaque mineral granules, rutile, and widespread acicular muscovite phyllosilicates are present.
[S1] microscopic description per EN 12407 and EN 12670
One stone, ten places it goes. Every application below is a different set of thicknesses, formats and finishes — not a different colour. Giallo Siena marble in use is photographed on the gallery page, and how it is cut for each of these places is on the block to container page.
Our own workshopWhat this stone takes, and what it does not
A finish is not a preference, it is a decision with consequences: what the surface takes, how it wears, and how it behaves when it is wet. Each one below carries a verdict - whether it is a standard order on this stone, whether it depends on the block, or whether it is not available here at all. The edge profiles we cut are drawn to section against the thickness of the material, and what to do to each finish once it is down is on the care and maintenance page.
Polished
A standard order on this stoneA mirror surface. The golden ground reads deeper and the veining gains contrast; reflections of a lit room are the strongest on this stone.
Honed
A standard order on this stoneSoft sheen. The colour reads truer than polished and the texture stays quiet, which is why it suits large floors where gloss would be busy.
Leathered
Possible — ask firstA muted sheen with a tactile grain. It reads as a matte stone with depth rather than a flat one.
Sawed (diamond saw)
A standard order on this stoneA low, directional texture. Unpolished, uncoated, and completely honest about being raw stone.
Natural split (rock face)
A standard order on this stoneA rugged, cleft surface with the stone's own bedding visible.
Brushed
Possible — ask firstA fine directional scratch pattern with a satin sheen.
Our own workshopFive tools that answer the questions a buyer actually has: what the stone looks like in a room, what a particular slab looks like up close, what a given area needs in pieces and weight, what is available, and what the published sheet says.
The eight questions that come up first when Giallo Siena marble is specified. The care and maintenance page answers the one that comes up after the order.
Giallo Siena marble, being worked
Three films from the workshop, shot on the day the photographs above were taken. The sawing film shows the block being opened; the second shows the finished surface under a hand; the third shows the slab travelling the polishing line. They are muted on purpose - the machinery is the subject.
1 minuteThe block being opened
The gang saw takes the block into slabs. The blade runs the length of the block, so every slab comes off the same cut plane.
Open the film
1 minuteA hand on the finished surface
The polished face of Giallo Siena marble, with the brown network running through the golden ground. The hand is the scale reference a photograph of a slab cannot give.
Open the film
2 minutesThe slab on the polishing line
The slab travelling the line after grinding, before the final polish. This is where the surface stops being sawn and starts being a finish.
Open the film