BLANCO DIAMOND 1-3/4 Bowl Sink

The BLANCO DIAMOND 1-3/4 Bowl Sink is a versatile double-bowl kitchen sink featuring a 60/40 configuration that balances a larger wash bowl with a smaller prep or rinse bowl. Constructed from BLANCO’s premium SILGRANIT® quartz composite, this sink offers outstanding resistance to heat (up to 536°F), stains, scratches, chips, and impact, while the non-porous surface helps repel liquids and food particles for easy cleanup. Its durable, easy-care design is ideal for everyday kitchen tasks and busy households. The sink is suitable for undermount installation and is available with options for dual-mount (drop-in or undermount) in some models, depending on SKU. The DIAMOND collection combines functional performance with a broad range of nature-inspired colors to complement various kitchen styles.

Key Features

• Double Bowl 1-3/4 Configuration – Larger bowl for washing and smaller bowl for prep or rinsing tasks.

• Premium SILGRANIT® Quartz Composite – Approximately 80% natural granite material for exceptional durability and resistance to household abuse.

• Heat & Scratch Resistant – Withstands hot cookware and regular wear.

• Non-Porous, Hygienic Surface – Easy to clean and helps repel food residue and liquids.

• Rear Positioned Drains – Maximizes usable bowl space and increases under-sink storage capacity.

• Undermount / Dual Mount Options – Undermount is standard; some listings note dual mount capability depending on model.

• Included Installation Template – Cut-out template and installation instructions provided; clips may be included or sold separately.

• Limited Lifetime Warranty – Backed by BLANCO’s warranty against manufacturing defects.

Available Color & Finish Options

The BLANCO DIAMOND 1-3/4 Bowl Sink is offered in multiple SILGRANIT® quartz composite finishes to coordinate with a wide range of kitchen designs and color schemes:

Coal Black

A rich, deep dark pitch-black finish with a bold, dramatic presence. Coal Black delivers a sleek, modern look that anchors the kitchen with confidence and pairs beautifully with contemporary cabinetry and metallic accents.

Anthracite

A deep charcoal-black tone with subtle granite flecking that adds depth and texture. Anthracite offers the sophistication of black with a softer, more dimensional stone appearance.

Cinder

A dark slate gray inspired by natural stone. Cinder strikes the perfect balance between black and gray, offering a refined, grounded neutral that complements both modern and transitional spaces.

White

A crisp, clean white with a timeless appeal. Bright and versatile, this classic finish enhances light and contrast, making it an effortless choice for both kitchens and laundry rooms.

Truffle

A soft, earthy taupe blending warm brown and gentle gray tones. Truffle brings subtle warmth and organic elegance, creating a refined neutral that pairs beautifully with natural materials and layered finishes.

Café Brown

A warm, medium brown reminiscent of milk chocolate. Café Brown adds richness and comfort to the space, offering a welcoming, grounded look with understated sophistication.

Soft White

A creamy, warm white designed to complement quartz and stone surfaces. Soft White delivers a gentle, inviting tone that feels refined and cohesive rather than stark. Blanco’s newest color has been an immediate success, answering the industry’s demand for a perfectly balanced, in-between tone.

Volcano Gray

A rich mid-tone medium gray with warm undertones and a smooth, stone-inspired finish. Deeper than light gray but lighter than charcoal, Volcano Gray offers a substantial, modern look and pairs exceptionally well with stainless steel and dark metal appliances.

Featured Throughout the Entire Color Collection: All Blanco Silgranit sinks are finished with a sophisticated eggshell sheen, offering a matte appearance enhanced by a gentle, light-reflecting glow.

Product Specifications

• Brand: BLANCO

• Collection: DIAMOND SILGRANIT®

• Model: 1-3/4 Bowl (Double Bowl)

• Material: SILGRANIT® quartz composite (~80% natural quartz)

• Installation Type: Undermount (dual-mount optional depending on specific SKU/model)

• Number of Bowls: 2 (1-3/4 configuration)

• Overall Dimensions: ~33″ (W) × 22″ (D) (varies slightly by model)

• Bowl Sizes:

  • Left Bowl: ~16.6″ (L) × 18.9″ (W) × 9.5″ (D)

  • Right Bowl: ~12.5″ (L) × 17″ (W) × ~8″ (D)

• Drain Opening: Standard 3.5″ (strainers sold separately)

• Drain Location: Rear position for both bowls

• Minimum Cabinet Size: 36″ recommended

• Shape: Rectangular

• Certifications: CSA B45.8-18 / IAPMO Z403-2018 compliant

• Warranty: Limited lifetime manufacturer’s warranty

What’s Included

• BLANCO DIAMOND 1-3/4 Bowl SILGRANIT® Sink

• Installation instructions and cut-out template

• Limited lifetime warranty documentation

Note: Basket strainers, drain fittings, decorative drain covers, and accessory grids are typically sold separately.

Ideal For

• Multi-task kitchen workflows that benefit from two separate bowls

• Kitchens needing durability and everyday stain/heat resistance

• Seamless undermount or flexible installation applications

• Transitional, modern, and classic kitchen styles