BLANCO Diamond Super Single Bowl Review (2026): A Spec-Based Look

What stands out

• SILGRANIT material resists heat, scratches, stains, chips, and impact.
• Hygienic+Plus Surface Technology shields against liquids and dirt buildup.
• Undermount installation allows for easy wiping of the countertop directly into the basin.
• Available in nine color options including Cinder, Truffle, and White.

Who it fits

Key specs explained

Size: 33.5 inches L x 18.5 inches W

This footprint defines the counter space required. You need a cabinet base wide enough to accommodate this length. Compare this to standard 30-inch sinks to ensure proper fit. A larger basin allows you to wash tall pots without tilting them excessively. It also provides more room for drying racks or colanders. Check your cabinet interior dimensions carefully before purchase to avoid installation conflicts.

Material: SILGRANIT

This patented composite material combines granite dust with acrylic resin. It offers high resistance to heat, scratches, stains, and impact. Unlike stainless steel, it does not show water spots or dents easily. This durability suits busy households that wash heavy cookware frequently. The surface remains intact under normal kitchen use. It is a practical choice for those seeking low maintenance and long-term structural integrity in a sink.

Surface: Hygienic+Plus

This technology creates a protective shield against liquids and dirt. It prevents bacteria growth and makes cleaning the basin easier. You can wipe away spills without them soaking into the material. This feature is beneficial for maintaining kitchen hygiene. It reduces the effort needed to keep the sink looking new. Compare this to standard surfaces that may require more frequent deep cleaning to remove grime buildup.

Color: Anthracite

This dark gray shade hides water spots and soap residue better than lighter colors. It provides a modern, matte appearance that complements various kitchen styles. Anthracite is less prone to showing daily wear compared to shiny finishes. Choose this if you prefer a sleek look that masks minor stains. It pairs well with stainless steel appliances. Consider how this tone matches your existing cabinetry and faucet hardware for a cohesive design.

Design and build details

The listing describes the BLANCO Diamond sink as being constructed from patented SILGRANIT material. This composite blend is engineered to resist heat, scratches, stains, chips, and impact. The surface features Hygienic+Plus Technology, which acts as a protective shield against liquids and dirt. This finish contributes to a hygienic environment by preventing grime buildup. You can choose from nine variations, including Anthracite, White, and Coal Black. These color options allow you to match the sink to existing cabinetry or countertops. The specific model reviewed is 441768 in Anthracite.

The basin measures 33.5 inches in length and 18.5 inches in width. The listed height is 9.87 inches, though other variations exist at 16 inches and 9.5 inches. This depth affects how much vertical space you have for washing large pots. The sink is designed for undermount installation. This method removes a rim from the counter surface, making it easier to wipe debris directly into the basin without obstruction. The listing notes that basket strainers and installation clips are sold separately. You must account for these additional components when planning your installation.

According to the listing, the unit weighs only 1 pound. This low weight is typical for composite sinks but requires proper support from the cabinet structure. Optional accessories include a grid, a floating dish rack, and a decorative drain cover. These items are not included. You can purchase them separately to customize the workspace. The sink is targeted specifically for kitchen use. Its single bowl layout offers a large, uninterrupted area for cleaning. This design suits households that prioritize washing bulky items over separating dishes.

Setup and daily use details

Installation requires an undermount method. This design choice keeps the rim below the counter surface. You avoid dirt and grime buildup around edges. The sink fits into a standard kitchen cabinet base. You must ensure the cabinet width exceeds 33.5 inches. The depth of 9.87 inches provides ample vertical space for large pots. You do not need to worry about heat damage or scratches from normal use. The SILGRANIT material handles these stresses well. The Hygienic+Plus surface repels liquids and dirt. This means you spend less time scrubbing stains. Cleaning involves a simple wipe down. You can enhance functionality with optional accessories. A grid protects the bottom from scratches. A floating dish rack holds items above the water. A decorative drain cover adds a finished look. Note that the basket strainer and installation clips are sold separately. You need to purchase these items for a complete setup. The Anthracite color hides water spots effectively. This is practical for daily dishwashing. The single bowl layout offers a large, uninterrupted workspace. You can fit wide platters and baking sheets easily. This setup supports efficient kitchen workflow. The material resists impact, so dropped items are less likely to cause damage. This durability supports heavy daily use. You rely on the sink for washing, rinsing, and prep. The specs suggest a low-maintenance experience. The composite construction ensures long-term reliability. You benefit from a hygienic surface that resists bacterial growth. This makes it suitable for food preparation. The design prioritizes function and ease of care. You get a durable, spacious basin for your kitchen tasks.

Before You Buy This Sink

You need to verify cabinet compatibility before purchase. The sink requires a base cabinet wider than 33.5 inches. Undermount installation demands precise cutting. You must buy the basket strainer and installation clips separately. These are not included. Optional accessories like grids and dish racks are available. Check item numbers for correct fit. The SILGRANIT material resists heat and stains. You wipe it clean with mild soap. Avoid abrasive pads. The Hygienic+Plus surface repels dirt. This sink sits alongside dishwashers in your kitchen layout. Ensure the faucet holes align with your chosen fixtures. The Anthracite color matches many styles. Other colors like White or Café are available. Consider how the deep basin fits your cooking habits. Large pots need the 33.5-inch width. Smaller sinks may not accommodate them. This model suits those who prioritize durability. The weight is light for its size. You handle it easily during installation. Confirm your countertop material supports undermounting. Granite or quartz works well. Laminate requires specific reinforcement. Read the listing carefully for exact dimensions. This ensures a proper fit. You avoid costly mistakes later.

Check before you buy

• Check cabinet width exceeds 33.5 inches
• Buy basket strainer and clips separately
• Confirm countertop supports undermounting
• Verify faucet hole alignment

The product at a glance

1

BLANCO Diamond 33.5 in Single Bowl Sink

Best for: durable single-bowl kitchen sinks

Installation Type

Undermount

Material

Silgranit

Exterior Dimensions

33.5" L x 18.5" W

Bowl Depth

9.87"

Bowl Configuration

Single Bowl

Target Space

Kitchen

View on Amazon: BLANCO Diamond 33.5 in Single Bowl Sink Affiliate link

This BLANCO sink is a single bowl model measuring 33.5 inches wide and 18.5 inches deep. It uses SILGRANIT material for resistance to heat, scratches, and stains. The Anthracite finish features Hygienic+Plus Surface Technology. It is designed for undermount installation to simplify cleaning. You should choose this if you need a durable, large-capacity kitchen sink that resists daily wear and tear.

Pros

• 33.5-inch width provides ample washing space
• SILGRANIT material resists heat, scratches, and chips
• Hygienic+Plus Surface Technology protects against dirt and liquids
• Undermount design allows for easy counter cleaning

Cons

• Basket strainer is sold separately
• Installation clips are sold separately
• Optional accessories like grids and racks cost extra

Good fit if

• You want a durable, single-bowl kitchen sink
• You prefer undermount installation for easy cleanup
• You need a wide basin for large items

Skip if

• You need a double-bowl configuration
• You want a drop-in sink style
• You expect all accessories to be included

Verdict: BLANCO Diamond Super Single Bowl, Anthracite fits users who prioritize a large, durable single basin with a scratch-resistant surface. It is ideal for those who want a low-maintenance kitchen sink and do not mind purchasing accessories separately.

Specifications side by side

Frequently asked questions

See also

• blanco diamond super single bowl alternatives
• best dishwashers under 300
• best single bowl utility sinks
• sleep100 single mattress review