PRODUCTS

Choose your
product type.

Start with the format you need. You can request current photos, details and pricing from the product page.

---

RAW MATERIAL

EXPORT READY

Natural Stone Blocks

Premium natural stone blocks selected for international export.

Explore Collection

---

PROJECT-READY STONE

EXPORT READY

Cut-to-Size Stone

Precision-cut natural stone for architectural and commercial projects.

Explore Collection

Custom Natural Stone Supplier

Natural stone is rarely a completely standardized material. Unlike manufactured products that can be reproduced with nearly identical dimensions, color and surface characteristics, every natural stone block carries its own geological structure, mineral composition, veining, density, pore distribution and visual character. This is precisely why sourcing stone for a demanding architectural project requires more than simply finding a supplier with a catalogue.

A Custom Natural Stone Supplier works around the requirements of the project rather than forcing the project to adapt to a fixed inventory.

For international buyers, this distinction is important. A project may require a particular marble background, a specific travertine cutting direction, large-format slabs, unusual panel dimensions, custom edge profiles, CNC-machined components, staircase pieces, vanity tops, façade panels or carefully matched stone sequences. The commercial requirement is therefore not simply “natural stone.” It is a defined material, fabricated according to a defined specification and delivered according to a defined project schedule.

A professional custom natural stone supply process connects those requirements with suitable stone sources, production capabilities, fabrication methods, inspection procedures and export logistics.

ALPREY approaches this requirement as an international natural stone procurement and trading partner, coordinating sourcing and export processes for Iranian marble, travertine, onyx, limestone and granite according to the technical and commercial requirements of the buyer.

What Is a Custom Natural Stone Supplier?

A Custom Natural Stone Supplier provides natural stone according to project-specific requirements instead of limiting the buyer to standard commercial products.

The word “custom” can refer to several different stages of the supply chain.

It may begin with the selection of a particular quarry source or stone variety. It may continue through block selection, slab production, sawing direction, thickness, surface treatment, dimensional cutting, CNC machining, edge profiling, drilling, waterjet cutting, assembly, numbering, packing and shipment.

In a conventional stone transaction, the buyer may select from available slabs or blocks.

In a custom supply model, the process starts with the buyer’s specification.

That specification can include:

• Stone type
• Origin or preferred source
• Color range
• Background structure
• Veining characteristics
• Vein-cut or cross-cut orientation
• Block dimensions
• Slab thickness
• Finished dimensions
• Dimensional tolerances
• Surface finish
• Edge profile
• Cut-outs
• Drilling
• Grooving
• Mitred edges
• CNC machining
• Waterjet cutting
• Bookmatching requirements
• Panel numbering
• Packing requirements
• Quantity
• Delivery schedule
• Destination
• Required inspection or testing

This makes custom natural stone procurement fundamentally different from buying generic slabs from a warehouse.

Custom Stone Supply Begins With Material Selection

One of the most important decisions in a custom project is made before fabrication begins: selecting the correct natural stone.

A stone can look excellent in a photograph and still be unsuitable for a particular application.

Color, pattern and visual appeal are only part of the selection process. The intended application, environmental exposure, dimensions, fixing method, maintenance conditions and required performance must also be considered.

ASTM C1528/C1528M-26 is an active guide for the selection of dimension stone and specifically addresses architects, engineers, specifiers, contractors and material suppliers involved in selecting, purchasing, fabricating and supplying natural stone products. It also emphasizes that stone is one component of a larger building assembly and that related materials and applicable codes must be evaluated.

For a custom natural stone supplier, this means that material selection cannot be separated from the intended application.

A countertop, interior wall panel, hotel bathroom, staircase, ventilated façade, flooring system and exterior architectural cladding may require very different material considerations.

The right supplier therefore asks what the stone is supposed to do, not merely what color the buyer wants.

From Quarry Block to Custom Architectural Material

Custom natural stone is created through a chain of decisions.

The process may begin at the quarry with the selection of suitable raw blocks. The block is then evaluated according to its dimensions, geometry, internal characteristics, color, veining, natural discontinuities and anticipated yield.

The block is subsequently processed according to the required production method.

For slab applications, the direction of sawing becomes particularly important.

For example, travertine can be processed in different directions to produce substantially different visual results. Marble can reveal different structures depending on cutting orientation. Onyx may require especially careful block selection because transparency, banding and internal structure can strongly influence the final appearance.

The objective is not simply to produce stone.

The objective is to produce the correct stone for the intended architectural result.

Custom Natural Stone Blocks

Some projects begin with raw blocks rather than finished slabs.

A buyer may need blocks selected according to specific dimensions, color, structure or expected recovery.

For a custom block requirement, the supplier may need to evaluate:

• Block length
• Block width
• Block height
• Squareness
• Surface condition
• Natural fractures
• Cavities
• Veining
• Color consistency
• Geological structure
• Expected sawing yield
• Intended cutting direction

Block dimensions matter commercially because they influence the efficiency of the next production stage.

A larger and more suitable block may provide better yield for large-format slabs or architectural components. Conversely, a visually attractive block may not necessarily be the most efficient block for a particular cutting plan.

This is why block selection should be connected to the final fabrication requirement.

Custom Natural Stone Slabs

Slab production is one of the most common areas where custom requirements become important.

A buyer may require a particular:

• Thickness
• Slab size
• Cutting direction
• Surface finish
• Color range
• Vein orientation
• Resin treatment
• Filling level
• Polishing specification
• Matching sequence

Large-format architectural projects can require dozens or hundreds of slabs to work together visually.

In such cases, purchasing random slabs from different production batches can create unnecessary variation.

A custom supply program can instead be organized around selected blocks and controlled production batches.

This does not eliminate the natural variation inherent in stone. Rather, it gives the buyer a more structured method for managing that variation.

Vein-Cut and Cross-Cut Stone

Cutting direction can dramatically influence the appearance of natural stone.

In materials such as travertine, different sawing orientations can expose different patterns, pores and linear structures.

Vein-cut production generally emphasizes directional geological structures, while cross-cut production can create a more cloud-like or non-directional appearance.

Neither should automatically be considered superior.

The correct choice depends on the architectural concept.

A custom natural stone supplier should therefore understand the relationship between:

quarry block → cutting direction → slab appearance → panel layout → installation sequence.

This relationship becomes particularly important when the buyer requires continuous visual movement across a wall, lobby, façade or feature surface.

Bookmatching and Visual Sequencing

Certain premium stone applications require more than color matching.

They require visual sequencing.

Bookmatching is a well-known example. Adjacent slabs are selected and arranged so that their natural patterns create a mirrored or coordinated visual composition.

This is particularly relevant for marble and onyx feature walls, hotel lobbies, reception areas, luxury residential interiors and other high-visibility applications.

A custom supplier may need to consider the entire sequence rather than individual slabs.

The objective is to avoid a situation in which every slab looks acceptable individually but the completed installation appears visually disconnected.

For project buyers, this makes slab photography, slab numbering, production records and layout planning important components of procurement.

Custom Cut-to-Size Natural Stone

Cut-to-size production takes custom stone procurement another step further.

Instead of supplying standard slabs for local fabrication, the supplier can coordinate stone according to defined finished dimensions.

Depending on the project, this may include:

• Wall panels
• Floor panels
• Stair treads
• Stair risers
• Countertops
• Vanity tops
• Sills
• Thresholds
• Window surrounds
• Door surrounds
• Fireplace components
• Feature walls
• Exterior panels
• Decorative components
• Hotel bathroom elements
• Custom architectural pieces

The fabrication process may include sawing, edge cutting, CNC machining, drilling, grooving, profiling, waterjet cutting or other specialized operations.

The more complicated the component, the more important the relationship between drawings and production becomes.

Shop Drawings and Fabrication Specifications

Custom stone should not be manufactured from vague instructions.

For project work, the buyer may provide shop drawings, CAD files, elevations, component schedules or detailed fabrication instructions.

A proper fabrication specification should clarify dimensions and tolerances, orientation, finish, edge treatment, holes, notches, cut-outs and other required features.

For larger projects, each piece may require a unique identification number.

The supplier can then use that identification system throughout fabrication, inspection and packing.

This creates a connection between:

drawing → production piece → inspection record → packing unit → installation location.

That traceability can significantly reduce confusion during complex installations.

CNC and Waterjet Fabrication

Modern natural stone fabrication allows complex geometries to be produced with a high degree of repeatability.

CNC machinery can be used for various forms of profiling and machining, while waterjet equipment can be used for intricate cuts and geometries.

Typical applications include:

• Circular openings
• Curved components
• Sink cut-outs
• Complex floor patterns
• Decorative inlays
• Repetitive architectural components
• Irregular wall panels
• Custom borders
• Detailed geometric designs

However, equipment alone does not guarantee a successful result.

The digital drawing must be correctly interpreted, the material must be appropriate, the tooling must match the stone and the finished component must be inspected against the agreed specification.

A custom natural stone supplier therefore needs to coordinate technical information as carefully as material sourcing.

Edge Profiles and Machined Details

Natural stone edges can be treated in numerous ways depending on the design.

Examples include:

• Straight polished edges
• Eased edges
• Beveled edges
• Bullnose profiles
• Mitred edges
• Pencil edges
• Custom architectural profiles

For countertops, furniture elements and interior architectural components, edge treatment can significantly affect both appearance and installation.

Mitred fabrication deserves particular attention because the quality of the finished corner depends on accurate cutting, bonding, alignment and finishing.

For large projects, the edge profile should be documented rather than left to interpretation.

Natural Stone Finishes

Surface finish is another essential part of a custom stone specification.

Common finishes include:

• Polished
• Honed
• Brushed
• Tumbled
• Sandblasted
• Flamed, where suitable for the stone
• Leathered or textured finishes where available
• Custom surface treatments

The selected finish changes the appearance and tactile character of the stone.

It can also affect maintenance, slip characteristics, reflectivity and the perception of color.

A custom natural stone supplier should therefore treat the finish as a defined specification rather than simply an aesthetic afterthought.

Quality Control for Custom Natural Stone

Quality control begins before fabrication.

It should start with the selection of the material and continue through production.

A practical quality-control sequence may include:

1. Source and Material Verification

Confirm the stone variety, source, color range and intended application.

2. Block Inspection

Where block production is involved, evaluate block dimensions, structure, natural discontinuities and visual characteristics.

3. Slab Inspection

Inspect slab dimensions, thickness, surface finish, cracks, repairs, resin treatment, color and visual consistency.

4. Fabrication Inspection

Check finished dimensions, edge profiles, openings, drilling, machining and surface condition.

5. Final Piece Inspection

Compare finished components against drawings, cut lists and agreed tolerances.

6. Packing Inspection

Verify numbering, protection, stacking, labeling and packing configuration before shipment.

This layered approach is more meaningful than relying on a single final inspection.

Technical Testing and Natural Stone Selection

Technical data becomes particularly important when a custom stone is intended for demanding applications.

ASTM C97/C97M-26 provides test methods for absorption and bulk specific gravity of dimension stone, excluding slate. ASTM notes that these tests can help indicate differences in absorption between stones and provide one element for comparing stones of the same type.

Depending on the application, other properties may also need consideration, including strength, flexural behavior, abrasion resistance, density, water absorption and other relevant characteristics.

The important point is that a test result should be interpreted in relation to the application.

A technical value does not automatically determine whether a stone is suitable for every possible use.

Project requirements, local regulations, engineering design and installation conditions remain relevant.

Custom Natural Stone for Exterior Applications

Exterior stone applications require additional attention.

A façade panel is not simply a larger version of an interior wall tile.

The stone interacts with its support system, anchors, substructure, joints and surrounding building components.

ASTM C1242-26 addresses the selection, design and installation of dimension stone attachment systems for exterior stone cladding and includes considerations related to engineering design, documentation, material selection, anchors, installation workmanship and inspection.

This is why a custom natural stone supplier should not treat façade supply as a purely decorative transaction.

The stone dimensions, thickness, fixing method, panel geometry and fabrication details need to be coordinated with the project’s technical requirements.

Natural Variation Is Not Automatically a Defect

One of the most important concepts in natural stone procurement is distinguishing between natural variation and an unacceptable defect.

Natural stone is geological material.

Variation in shade, veining, fossil content, pore distribution, crystal structure and pattern can occur even within the same quarry source.

The buyer should therefore define what visual range is acceptable before production.

For a commercial project, this can be done through:

• Approved samples
• Reference slabs
• Block photography
• Production-batch photographs
• Marked-up images
• Color-range agreements
• Mock-ups
• Written specifications

Clear tolerances are especially important in professional stonework. The Natural Stone Institute highlighted this issue in its 2026 guidance on acceptable variation and quality-control considerations for dimension stone.

The goal is not to make natural stone look artificial.

The goal is to establish a commercially clear understanding of what variation is acceptable.

Custom Natural Stone for Hotels and Hospitality Projects

Hotels frequently require coordinated stone across multiple areas.

A project may involve:

• Lobby walls
• Reception desks
• Bathroom vanities
• Guest-room bathrooms
• Corridors
• Staircases
• Feature walls
• Restaurants
• Spa areas
• Exterior façades
• Pool surroundings

In such projects, consistency becomes a major procurement consideration.

A buyer may need the same material to be supplied in different thicknesses, finishes and fabricated dimensions while maintaining an identifiable visual relationship.

This is where a custom procurement structure can be more practical than purchasing each component independently.

Custom Natural Stone for Commercial Projects

Commercial developments may require large quantities of stone combined with strict dimensional requirements.

Office buildings, retail centers, restaurants, institutional buildings and mixed-use developments can involve repetitive components where small dimensional inconsistencies become costly during installation.

Custom fabrication can help coordinate repetitive components according to a defined production schedule.

The supplier may work from a component schedule and organize pieces by area, floor, elevation or installation sequence.

This creates a more controlled procurement process.

Custom Stone for Architects and Designers

Architects often begin with a visual concept rather than a conventional product specification.

The desired result might be:

• A continuous marble wall
• A dramatic onyx feature
• A linear travertine façade
• A specific beige stone palette
• A particular vein direction
• A custom geometric floor
• A monolithic staircase
• A precisely detailed reception counter

The supplier’s role is to translate that visual requirement into a material and production specification.

This requires understanding both stone and fabrication.

A supplier who understands only the commercial side may miss technical constraints.

A fabricator who understands only production may not understand the procurement and export requirements of an international buyer.

The strongest workflow connects both.

Iranian Custom Natural Stone

Iran has a broad natural stone industry with commercially important marble, travertine, onyx, limestone and granite varieties.

For international buyers, the value of Iranian stone sourcing is not limited to identifying a particular color or material name.

The real procurement challenge is connecting the desired material to an appropriate production source and then controlling the commercial process from selection through shipment.

Depending on the project, Iranian stone can be sourced as:

• Raw blocks
• Rough blocks
• Slabs
• Cut-to-size panels
• Stair components
• Countertops
• Architectural elements
• Project-specific fabricated pieces

Availability, dimensions, quality range and production capability must always be confirmed against the specific inquiry rather than assumed from a general catalogue.

Why Custom Natural Stone Requires a Different RFQ

A standard RFQ might simply ask:

“Please quote 1,000 m² of marble.”

A professional custom-stone RFQ should be considerably more detailed.

It can include:

Material: Marble / Travertine / Onyx / Limestone / Granite

Form: Block / Slab / Cut-to-size / Fabricated component

Dimensions: Length × Width × Thickness

Finish: Polished / Honed / Brushed / Other

Cutting direction: Vein-cut / Cross-cut / As specified

Edge: Straight / Beveled / Bullnose / Mitred / Custom

Machining: CNC / Drilling / Grooving / Cut-outs

Quantity: m² / pieces / tons / slabs

Visual requirement: Color range / veining / matching

Packaging: Export packing requirements

Destination: Port, city or project location

Commercial basis: EXW / FOB / CFR / CIF or other agreed basis

The better the RFQ, the less room there is for misunderstanding.

Packaging Custom Fabricated Stone for Export

Finished architectural components can be more sensitive than standard slabs.

A slab can be protected within a properly designed A-frame system, while irregular fabricated components may require individually adapted packaging.

Depending on the product, export packing may involve:

• Reinforced wooden crates
• A-frame structures
• Protective separators
• Edge protection
• Moisture protection where appropriate
• Identification labels
• Component numbering
• Packing lists
• Weight information
• Installation sequence references

Packaging should be considered part of the technical supply process.

A perfectly fabricated stone component can still become commercially problematic if it arrives damaged, incorrectly labeled or difficult to identify.

Custom Stone and Landed Cost

The purchase price is only one component of international stone procurement.

For an importer, the relevant commercial calculation may include:

Stone Cost + Fabrication + Packing + Inland Transport + Export Charges + Freight + Insurance + Destination Charges + Duties/Taxes + Local Delivery + Other Applicable Costs = Landed Cost

This is especially important for custom stone because fabrication, packaging and handling can materially change the final economics.

A supplier quote should therefore be compared on a like-for-like basis.

Two offers with the same stone price may have completely different finished costs if one includes fabrication, packing and export coordination while the other does not.

Custom Natural Stone Supplier vs Stone Manufacturer

These terms should not automatically be treated as interchangeable.

A manufacturer generally refers to an entity operating production or manufacturing facilities.

A custom natural stone supplier may instead coordinate sourcing and fabrication through qualified production partners.

A procurement company may manage the commercial relationship, material selection, production coordination, inspection and export process without owning the quarry or factory.

For international buyers, the important question is therefore not simply:

“Are you a manufacturer?”

The more useful questions are:

• Where does the stone originate?
• Who produces the blocks?
• Where are the slabs fabricated?
• Who performs the machining?
• What specifications can be supported?
• How is quality inspected?
• How are pieces identified?
• How is production documented?
• Who coordinates export?
• What exactly is included in the quotation?

Transparency on these points is more valuable than an ambiguous corporate label.

ALPREY as a Custom Natural Stone Procurement Partner

ALPREY operates as a specialized international procurement and trading house for natural stone.

The company does not present itself as a quarry owner or physical mining operator.

Instead, ALPREY works through sourcing relationships and long-term off-take arrangements with Iranian production sources to connect suitable materials with international buyers.

For custom natural stone requirements, the procurement process can involve:

Buyer Requirement → Material Identification → Source Screening → Block/Slab Selection → Technical Specification → Fabrication Coordination → Quality Control → Packing → Export Coordination

This structure allows the buyer to communicate one commercial requirement while the necessary production and sourcing stages are coordinated through the supply chain.

The exact production capability, availability, dimensions and lead time remain subject to the specific material and project inquiry.

That distinction matters.

Professional procurement is not about promising every possible stone in every possible dimension.

It is about determining what can actually be supplied and documenting it clearly.

From Sample to Production

For unfamiliar materials or new supplier relationships, a staged approach can reduce commercial uncertainty.

A buyer may begin with:

1. Material identification
2. Technical and visual review
3. Sample or reference approval
4. Trial production
5. Inspection
6. Shipment
7. Buyer evaluation
8. Larger production program

This approach is particularly useful when the buyer needs to evaluate not only stone quality but also communication, documentation, fabrication accuracy, packaging and delivery performance.

A successful first transaction can then provide a foundation for a longer-term supply relationship.

What International Buyers Should Expect From a Custom Natural Stone Supplier

A professional supplier should be able to communicate clearly about the complete supply chain.

The buyer should expect transparency regarding:

• Material origin
• Product form
• Production location
• Available dimensions
• Fabrication capabilities
• Surface finishes
• Technical information
• Natural variation
• Inspection procedures
• Packaging
• Lead time
• Commercial terms
• Shipping basis
• Documentation
• Limitations

The purpose is not to eliminate every uncertainty in natural stone.

That is unrealistic.

The purpose is to identify uncertainties early enough that they can be managed commercially.

Why Specification Discipline Matters

Custom stone is ultimately a specification-driven product.

The phrase “high-quality marble” is not enough.

A useful specification identifies what the buyer actually requires.

For example:

Material: Iranian marble
Form: Cut-to-size panels
Thickness: Project specified
Finish: Honed
Dimensions: According to shop drawings
Edge: As detailed
Vein direction: Directional
Visual range: Approved reference
Quantity: Project schedule
Inspection: Pre-shipment
Packing: Export-grade
Delivery: Agreed Incoterm and destination

The more precise the specification, the more precise the procurement process can become.

Custom Natural Stone Is a Coordination Discipline

The strongest custom natural stone projects are not created by one isolated production stage.

They are created by coordination.

The quarry or raw material source needs to provide appropriate stone.

The processing facility needs to understand the cutting requirements.

The fabricator needs to understand the drawings.

The inspection process needs to understand the agreed tolerances.

The packing team needs to understand the installation sequence.

The logistics process needs to understand the dimensions and weight of the cargo.

And the buyer needs visibility across the process.

That is the real meaning of professional custom natural stone supply.

Choosing a Custom Natural Stone Supplier

Before appointing a supplier, international buyers should evaluate the supply process rather than relying only on photographs or a product catalogue.

Useful questions include:

• Can the supplier source the required stone variety?
• Can the material be produced in the required form?
• Can the supplier work from technical drawings?
• Can custom dimensions be coordinated?
• Can CNC or waterjet fabrication be arranged where required?
• Can visual matching requirements be documented?
• Can finished pieces be numbered?
• Can pre-shipment inspection be arranged?
• Can export packaging be provided?
• Can the supplier clearly state what is included in the price?
• Can the supplier distinguish confirmed availability from potential sourcing?
• Can the commercial process be documented from source to shipment?

These questions help separate a genuine project-oriented supply structure from a simple catalogue-based sales operation.

Custom Natural Stone for Long-Term Supply

Custom fabrication does not necessarily have to be limited to one project.

For importers and distributors, a successful custom program can develop into recurring supply.

A distributor may require a specific stone in standardized dimensions.

A hotel group may require recurring bathroom components.

A fabricator may require consistent slabs from selected material sources.

An architectural supplier may need project-specific stone packages for multiple developments.

In these cases, the objective becomes repeatability.

Repeatability in natural stone does not mean making every piece geologically identical.

It means controlling the procurement and production parameters sufficiently to create a predictable commercial supply program.

A Practical Approach to Custom Stone Procurement

A disciplined custom procurement process can be summarized in eight stages:

1. Define the Requirement

Specify material, application, dimensions, finish, quantity and destination.

2. Identify Suitable Material

Select a stone whose visual and technical characteristics are compatible with the application.

3. Evaluate the Source

Confirm the relevant production source, capabilities and available material.

4. Approve the Visual Reference

Use samples, photographs, slabs or mock-ups where appropriate.

5. Finalize Fabrication

Confirm drawings, dimensions, tolerances, machining and finishing.

6. Control Production

Monitor material and fabrication quality throughout the process.

7. Inspect and Pack

Verify finished pieces and organize export packaging and documentation.

8. Coordinate Shipment

Arrange the agreed commercial and logistics process to the destination.

This sequence creates a much stronger foundation for international stone procurement than simply requesting a price per square meter.

Conclusion: Custom Natural Stone Supplier for International Projects

A Custom Natural Stone Supplier is not simply a company that sells natural stone.

The role is to connect a project’s specific material requirements with the right source, production method, fabrication process, quality-control structure and export workflow.

For architects and designers, that may mean translating a visual concept into a practical stone specification.

For fabricators, it may mean securing suitable blocks or slabs with predictable characteristics.

For importers and distributors, it may mean coordinating custom dimensions, finishes and recurring production.

For contractors and developers, it may mean reducing uncertainty between approved material, fabrication and delivery.

For hospitality projects, it may mean coordinating hundreds of individual stone components into a coherent architectural package.

Natural stone will always retain an element of geological individuality. A professional procurement process does not try to remove that character. It creates the structure needed to work with it intelligently.

At ALPREY, the focus is on connecting international buyers with suitable Iranian natural stone sources and coordinating the procurement and export process around defined commercial and technical requirements.

The principle is straightforward:

Clarity for the buyer. Discipline for the process. Respect for the material.