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

TW00072P

SAMPLES SHIP FREE WITHIN 1–3 BUSINESS DAYS

$14.47 / Piece

QUANTITY

Quantity

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

TOTAL PRICE:

—

Order your full amount plus 10% at once — reorders may vary in tone and veining. Shipping damage is covered with photos; small shortages (1–5 pieces) are refunded, NOT reshipped, so the extra 10% 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.

Why Order a Sample
A screen can't show you how Calacatta veining reads under your kitchen lights or how a porcelain finish sits next to your cabinet color. A sample can. It's the single best way to buy stone or porcelain tile with confidence — and the cheapest mistake you'll ever avoid.

How It Works
Samples are $7.99 each. Samples ship free and leave our warehouse within 1–3 business days. Sizes vary by material and availability — typically 3"×3" up to 8"×8" — and every sample is cut from the same material stocked for full orders.

What a Sample Shows
Color, texture, finish, and overall character. Because natural stone varies piece to piece, one sample represents the material but can't show the full range of a lot. Porcelain samples are highly representative of the production run. Want to see the current lot before you commit? Ask us — we'll send photos.

Good to Know

Samples are final sale — non-returnable and non-refundable.
We recommend sampling before every full order, especially for natural stone.
Larger or custom quantity? Contact us for a tailored quote.

Talk to a Specialist
Our stone and tile specialists will help you narrow it down. Call (855) 797-8453 or email sales@tileandmosaicdepot.com, Monday–Friday, 8:30 AM–5 PM PT.

How Your Order Ships
In-stock orders leave our warehouse within 2–3 business days. Stone, porcelain, and mosaic ship on a pallet via scheduled LTL freight and arrive 2–10 business days after dispatch, depending on destination. You'll get tracking and the carrier's name by email the day it ships.

Freight Delivery — What to Expect

The carrier calls you first. Every freight delivery is by appointment. Expect a call or text to set a window before the truck is dispatched.
Curbside delivery. The driver unloads to the curb or driveway. Freight does not include carrying material indoors or into a garage — plan for a helper or a hand truck.
Someone 18+ must sign. Inspect the pallet before signing. Note any damage, shortage, or broken shrink-wrap on the delivery receipt — this is what makes a claim valid.
Truck access. The address must be accessible to a full-size freight truck with enough space to unload.

Free Shipping
Free curbside freight on qualifying mosaic and molding orders over $1,999 in the continental U.S. Field tile, porcelain, and other product types ship at freight rates shown at checkout. Not available to Hawaii, Alaska, U.S. territories, or international addresses.

Damage & Shortages
Report within 3 calendar days of delivery with photos of the pallet, packaging, and affected pieces to sales@tileandmosaicdepot.com. Verified claims are covered. Shortages of 1–5 pieces are refunded rather than reshipped — which is why we recommend ordering 10% overage.

30-Day Returns
Uninstalled tile in full, unopened boxes may be returned within 30 days of delivery. Return freight is paid by the customer. Partial boxes, opened boxes, installed material, and samples are final sale.

Questions Before You Order?
Call (855) 797-8453 or email sales@tileandmosaicdepot.com, Monday–Friday 8:30 AM–5 PM PT. If you're unsure about freight access at your address, ask us before checkout — we'll flag anything that could hold up delivery.

Natural Variation
Quarried stone varies in color, veining, shade, movement, and finish from piece to piece and from lot to lot. Screen photos and samples show the range, not the exact tile you'll receive. Variation is the nature of the material and is never grounds for return. Porcelain is far more consistent, but shade and pattern can still shift between production runs — buy your full quantity in one order.

Before You Install

Order 10% overage. Covers cuts, breakage, and spares for future repairs. Reorders may not match in tone or lot.
Inspect every piece before setting. Pull from all boxes, blend, and dry-lay the full area. Installation is acceptance — no claims are honored once tile is set.
Hire a qualified installer. Natural stone and large-format porcelain require experience with the material. Your installer is responsible for substrate, setting materials, and method.

Sealing & Care
Natural stone should be sealed with a penetrating sealer and re-sealed periodically in wet and high-traffic areas. Clean with a pH-neutral stone cleaner only — vinegar, bleach, ammonia, and acidic cleaners etch marble, limestone, travertine, and onyx permanently. Porcelain does not require sealing. Outdoor stone weathers and shifts in tone over time; this is expected.

Responsibility
Tile & Mosaic Depot supplies material only. We are not responsible for installation, labor costs, substrate conditions, setting materials, product misuse, or damage from handling, sealing, maintenance, or chemicals. No claims, returns, or replacements are accepted on installed material.

California Proposition 65
Some natural stone and porcelain products contain substances known to the State of California to cause cancer or reproductive harm. Details at www.P65Warnings.ca.gov.

The Natural Stone & Porcelain Tile Specialists

Direct from the Producers

We buy directly from the mills and factories that cut and finish our tile, so pricing stays sharp and lots stay consistent.

Samples Ship Free

$7.99 per sample with no shipping charge, shipped within 1–3 business days. See the current material before you commit.

Ask a Specialist

Email us anytime with a question about our products at sales@tileandmosaicdepot.com. We'll get back to you during our business hours, Mon–Fri 8:30 AM–5 PM PT.