2 x 12 Polished Thassos White Marble BIAS Border w/ Blue-Gray Dots.

2 x 12 Polished Thassos White Marble BIAS Border w/ Blue-Gray Dots

Name: 2 x 12 Polished Thassos White Marble BIAS Border w/ Blue-Gray Dots
Brand: TILE AND MOSAIC DEPOT
SKU: TW00072P
Price: 14.47 USD
Availability: InStock

SAMPLES SHIP FREE IN 1 TO 3 BUSINESS DAYS!

$14.47 / Piece

QUANTITY

Quantity

Add 10% more to cover cuts and waste (recommended)

TOTAL PRICE:

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Order your full amount plus ~10% overage at once, as reorders may vary in tone and veining. Verified shipping damage is covered with clear photos — but small tile quantities (1–5 pieces) are refunded rather than reshipped, so ordering extra protects you.

Thassos White Marble

Thassos White marble — the purest, most brilliantly white marble in the world. Quarried exclusively on the Greek island of Thassos with crystalline white and virtually no veining. Tile and mosaic formats in polished and honed finishes for luxury bathrooms, spa spaces, and pool interiors. Free sample shipping on all products.

About Thassos White Marble Bias Border with Blue-Gray Dots

Material Education

Thassos White is a pure, crystalline marble quarried exclusively from the Greek island of Thassos, renowned for producing one of the whitest natural stones in the world. Its dense, sugar-crystal structure reflects light with a luminous, almost glowing quality, and it presents with a clean, bright white field that is virtually free of veining or patterning. The polished finish intensifies this brilliance, giving each piece a mirror-like surface that amplifies surrounding light.

Because Thassos is a natural stone, subtle shifts in crystalline grain size and occasional faint mineral inclusions are inherent characteristics of genuine material and are not considered defects.

About this molding: This 2×12 bias-cut border molding features an angled profile designed to frame tile installations with elegant diagonal lines, and is further distinguished by inlaid blue-gray dot accents that introduce a refined contrast detail. Each piece is sold per linear foot, making it straightforward to calculate coverage for borders, listello applications, and accent banding.

Design & Inspiration

The stark, luminous white of Thassos pairs beautifully with soft blue-gray accents — complementing polished chrome fixtures, brushed nickel, pale wood tones, and cool-toned natural stones such as Bardiglio or Blue Celeste marble. This border is a natural fit for spa-inspired bathrooms, classic transitional interiors, coastal aesthetics, and clean contemporary spaces.

The bias (diagonal) cut profile adds dynamic movement when used as a horizontal banding element, breaking up large expanses of tile with an architectural detail that feels intentional and custom. The inlaid blue-gray dots echo grout line color and add a delicate, jewelry-like rhythm that elevates otherwise simple field tile layouts.

Popular design combinations: pair with a field of large-format Thassos White honed tiles and a Bardiglio Gray marble mosaic floor for a timeless, light-filled master bath. Explore the full Thassos White Collection for coordinating sizes, and browse more Marble Moldings & Trims for complementary looks.

Ships in 2–3 Days

Free Sample Shipping

Nationwide Delivery

Premium Natural Stone

Secure Packaging

This 2×12 polished bias border is crafted from Thassos White marble, sourced from the island of Thassos in Greece and celebrated worldwide for its exceptional purity and intense crystalline whiteness. The inlaid blue-gray dot accents introduce a subtle contrasting detail that gives this border a refined, custom-crafted character.

The polished finish delivers a high-gloss, reflective surface that showcases Thassos's signature luminosity, while the diagonal bias profile creates a sense of architectural movement ideal for framing shower walls, vanity surrounds, or floor borders. Installation is straightforward — pieces align end-to-end as a continuous banding element and pair seamlessly with other Thassos field tiles or mosaics.

Best suited for indoor wall applications including shower niches, bathroom borders, and backsplash accents; the polished surface is not recommended for floor use due to slip concerns when wet. Because this is a specialty trim item with limited stock, ordering a sample is strongly advised to verify the blue-gray dot tone matches your field tile and grout selection.

Material	Natural Marble
Color	Bright White with Blue-Gray Dot Accents
Type	Marble Border Molding / Listello
Pattern	Bias (Diagonal) Cut with Inlaid Dot Accents
Piece Size	2 × 12 inches
Finish	Polished
Sold By	Per Linear Foot
Application	Wall & Accent (Indoor)
Shade Variation	V1 — Uniform
Design	Contemporary / Transitional / Classic
Country of Origin	Europe

✓ Bathroom Wall BorderFrames shower walls with elegant linear detail

✓ Shower Niche AccentDefines niche edges with refined contrast

✓ Backsplash BandingAdds architectural rhythm to kitchen backsplashes

✓ Vanity Surround TrimPolished finish complements chrome and nickel fixtures

— Floor UsePolished surface is slippery when wet — not recommended for floors

— Outdoor UseNatural marble and polished finish not suitable for exterior applications

Free Shipping: As a molding, this product qualifies for free curbside shipping on orders over $1,999 within the continental U.S. Orders below that threshold ship at standard rates calculated at checkout.

Processing & Delivery: Orders are processed within 2–3 business days. Large orders ship via LTL freight — curbside delivery only. An adult must be present to sign for delivery. Estimated transit: 2–10 business days after shipment.

30-Day Returns: Uninstalled tile may be returned within 30 days of delivery. Inspect all tile carefully before installation — installed tile cannot be returned or exchanged. Samples are final sale.

Exclusions: Free shipping does not apply to Hawaii, Alaska, U.S. territories, or international addresses. Additional charges may apply for remote delivery areas.

Sealing: Thassos White marble, despite its density, is a light-colored natural stone highly susceptible to staining and should be sealed with a penetrating impregnating sealer before grouting and immediately after installation. In wet areas such as showers, re-seal every 6–12 months to maintain stain resistance. The pure white color leaves little room to hide staining, so consistent sealing is especially critical.

Cleaning: Clean with a pH-neutral stone cleaner or mild dish soap diluted in warm water — never use vinegar, citrus-based cleaners, bleach, or any acidic or alkaline product, as these will etch and permanently dull the polished surface. The high-gloss polished finish is particularly sensitive to etching from hard water, soap scum, and acidic substances; wipe dry after each use in wet areas to minimize mineral deposits.

Installation: Use white polymer-modified thinset mortar exclusively — gray thinset can bleed through the dense white stone and discolor it permanently. For grout joints, choose a non-sanded or unsanded grout in white or a soft gray to complement the dot accents. Back-butter each piece thoroughly to ensure full coverage and prevent lippage, and use tile spacers to maintain consistent joint alignment. Allow thinset to cure fully before grouting.

Important: Inspect all tile before installation. Variations in color, veining, and texture between pieces are natural characteristics of genuine stone — not defects. Order 10% overage for cuts, waste, and future repairs. Tile & Mosaic Depot specialists are available M–F 8:30AM–5PM PST at 855-797-8453.

Why Tile & Mosaic Depot

The natural stone specialists

Quarry-Direct Pricing

We buy direct from the source and skip the middleman, so you get showroom-quality stone for less.

Huge Stone Selection

Marble, travertine, limestone, porcelain and more — thousands of tiles, mosaics, and slabs in one place.

Expert Stone Support

Talk to real natural-stone specialists, M–F 8:30AM–5PM PST, at 855-797-8453 or via live chat.

Easy 30-Day Returns

Uninstalled tile can be returned within 30 days. Order with full confidence.

Every order is packed by hand and shipped with care from our U.S. fulfillment centers. Here's exactly what to expect from checkout to delivery.

Processing & Transit
In-stock orders are processed within 2–3 business days. Most tile and stone orders ship via scheduled LTL freight and typically arrive 2–10 business days after dispatch, depending on your destination. You'll receive tracking and carrier details by email as soon as your order leaves our warehouse.

Freight Delivery

Curbside delivery. The carrier unloads at the curb or driveway nearest your address; delivery does not include moving materials indoors or into a garage.
Scheduled appointment. The freight company contacts you directly to arrange a delivery window.
Signature required. An adult (18+) must be present to inspect and sign for the shipment.
Clear access. Please ensure the delivery site is reachable by a freight truck and free of obstructions.

Free Shipping
Free curbside shipping is available on qualifying mosaic and molding orders over $1,999 within the continental U.S. Tile, porcelain, and other product types ship at standard freight rates calculated at checkout. Free shipping does not apply to Hawaii, Alaska, U.S. territories, or international addresses.

Inspection & 30-Day Returns
Please inspect every shipment before signing the carrier's delivery receipt, and note any visible damage, shortage, or tampering directly on the receipt. Report concerns within 3 calendar days at sales@tileandmosaicdepot.com. Uninstalled tile may be returned within 30 days of delivery; installed material and samples are final sale.

Need a hand? Our team is glad to help — call (855) 797-8453 or email sales@tileandmosaicdepot.com, Monday–Friday, 8:30 AM–5 PM PST.

Product & Installation Guidance

Natural stone is a product of the earth — every piece is one of a kind. A little planning ensures your finished installation looks its best and lasts for decades.

Natural Variation
Color, veining, texture, shade, movement, finish, and sizing vary from piece to piece. Product photos and samples are a general reference and may not match the exact material you receive. These variations are inherent characteristics of natural stone — they are part of its beauty, not defects.

Before You Install

Order roughly 10% extra to allow for cuts, waste, and future repairs.
Blend tiles from multiple boxes as you work to achieve the most natural, balanced appearance.
Dry-lay and inspect the full layout before setting a single tile.
Installation constitutes full acceptance of the product, so review everything carefully first.

Sealing & Care
Natural stone should be sealed with a quality penetrating sealer before and after installation, and re-sealed periodically in wet or high-traffic areas. Clean only with a pH-neutral stone cleaner; avoid acidic products, bleach, vinegar, and ammonia, which can permanently etch the surface. Outdoor installations may weather or change tone over time with exposure.

Responsibility
Tile & Mosaic Depot is not responsible for improper installation, labor costs, substrate conditions, product misuse, or damage from improper handling, sealing, maintenance, or harsh chemicals. No claims, returns, or replacements can be accepted on installed material.

California Proposition 65: Some natural stone products contain substances known to the State of California to cause cancer or reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Order a Sample First

Seeing real stone in your own space — under your own light, beside your own finishes — is the best way to buy with confidence. We make it easy and affordable.

How It Works
Samples are just $7.99 each with free shipping, and they ship in 1–3 business days. Sizes vary by material and availability, typically ranging from 3"×3" up to 8"×8". Exact dimensions aren't guaranteed, but every sample is cut from the same material you'll receive in a full order.

What a Sample Shows
Samples help you evaluate the general color, texture, finish, and overall character of a product before committing to a full order. Because natural stone varies from piece to piece, your sample is representative — it may not capture the complete range of variation across an entire lot. For current lot photos, just ask our team.

Good to Know

Samples are final sale — non-returnable and non-refundable.
Ordering a sample before a full purchase is always recommended, especially for natural stone.
Planning a larger or custom quantity? Contact us for a tailored quote.

Questions before you order? Our stone specialists are happy to help you choose — call (855) 797-8453 or email sales@tileandmosaicdepot.com, Monday–Friday, 8:30 AM–5 PM PST.