Description
Square Diagonal Groove Marble Coaster Set
The Square Diagonal Groove Marble Coaster Set is a custom marble design for tea tables, work desks and guest rooms. It has square coasters crossed by one shallow diagonal groove, giving the piece a recognisable outline rather than relying on added decoration. The design can be discussed as shown or used to develop a measured proposal. Begin with the available space and intended use so the finished proportions can be planned carefully.
Choosing the size and position
Measure the base of the cups or glasses you normally use, rather than their widest upper rim. Each vessel should sit completely inside the flat usable area. On a small tea table, also check how much space remains for snacks and a serving tray. The number of coasters and any storage holder should be included in your enquiry so the quotation covers the complete set.
Suggested size: 10 × 10 × 1 cm per coaster. These are approximate planning dimensions chosen for this design, not measured dimensions of a stocked item. Any usable opening, stone thickness, base and required clearances need to be confirmed on the final specification. Custom sizing can be discussed before manufacture.
Record the overall width, depth and height in your enquiry. If the design has an opening, recess or slot, confirm its usable measurements separately from the outside size. For this design, check the space needed for square coasters crossed by one shallow diagonal groove. A dimensioned drawing can resolve these relationships before the stone is cut.
Reviewing the diagonal groove against the vessel footprint
One shallow diagonal groove crosses the square coaster surface. Ask for its exact position, width and depth on the proposed drawing, together with a section through the top. The overall square size cannot show how the groove relates to the contact ring of a cup or glass. Confirm a suitable seating arrangement with the maker before choosing the final dimensions for the vessels you intend to use.
Place the actual vessel bases on a paper plan that marks the diagonal line and the clear outer edges. Compare their contact areas with the intended groove position, rather than assuming the whole top is uninterrupted. If the square is enlarged, review the groove detail and edge treatment at the same time. Ask for the agreed measurements per coaster to be recorded on the final specification.
The diagonal is a carved design detail, with no drainage, spill-catching or self-levelling function established for it. Discuss the underside finish and any separate protective backing suited to the furniture surface. Confirm the number of coasters and whether a holder is included in the quotation. Agree the selected marble, finish and general consistency of the proposed set while allowing natural variation in the stone grain.
Marble and finish
The proposed material is white marble, subject to confirmation of the selected stone. Natural stone can show pale veins and changes in tone even within one piece. These variations should be considered when matching existing interiors. Discuss the surface finish and request suitable material information before treating the illustration as an exact colour reference.
A closer look at the design
The shape is easiest to understand by looking closely at the diagonal groove crossing the face. This is the part to review when comparing the design with a simpler alternative. Its depth and edge treatment affect how the piece reads in ordinary room light. Share any preference for a softer edge or a more pronounced profile when requesting the final drawing.

Practical points before ordering
Stone does not make a coaster spill proof or scratch proof. Wipe tea, coffee and coloured drinks promptly, and check that the underside suits the table finish. Ask about soft backing before ordering. A matching holder is included only when it appears in the confirmed quotation; the illustrated set quantity is indicative.
Care and handling
For routine care, use a soft cloth and a marble suitable cleaner when needed. Do not scrub carved edges with an abrasive pad or apply acidic bathroom and kitchen cleaners. Remove spills promptly instead of allowing them to dry into the surface. The maker should advise on any sealer, liner or special finish included in the confirmed order.
Request a custom quotation
When enquiring about the Square Diagonal Groove Marble Coaster Set, share the space measurements, intended use, quantity and delivery postcode. Add a photograph of the setting if possible. The quotation should identify the final stone, finish, dimensions, included components, price and delivery arrangements. Confirm these points before placing an order, including any changes you have requested to the illustrated shape.
Compare the square corner notch marble coaster set and octagonal channel marble coaster set, or send a custom enquiry. For general cleaning guidance, see the Natural Stone Institute care advice.
Images are AI generated design illustrations, not photographs of a specific finished or stocked piece. Final dimensions, materials and included fittings are subject to the confirmed quotation.





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