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The best black granite composite sink keeps a deep, even color for years, resists scratches and heat, and does not show the faint white film that hard water leaves on cheaper dark sinks. Black composite sinks are made from crushed quartz or granite bound in resin and colored all the way through, so small scratches do not reveal a lighter layer underneath.
We compared seven black and near-black sinks on Amazon from KRAUS, BLANCO, Ruvati, Karran and value brands, and explain which suits each kitchen.
Quick Answer: The Best Black Granite Composite Sink
- Best OverallKRAUS Black Onyx 31 in. Undermount Granite Kitchen Sink KGU-413B
- Best PremiumBLANCO 440179 Diamond SILGRANIT 60/40 Double Bowl Undermount Sink – Anthracite
- Best Dual MountKRAUS Black 33 in. Single Bowl Drop-In Granite Kitchen Sink KGD-54BLACK
- Best Made in ItalyRuvati 33 x 22 in. Midnight Black Granite Drop-In Sink RVG1033BK
- Best Offset DrainKarran QU-670 32 in. Black Quartz Composite Undermount Single Bowl Sink
- Best Value WorkstationLordear 33 in. Matte Black Undermount Granite Composite Workstation Sink
- Best BudgetFulorni 33 x 19 in. Black Granite Composite Undermount Workstation Sink
The KRAUS KGU-413B Black Onyx is the best black granite composite sink for most kitchens: over 1,000 ratings, a 33 in. cabinet fit and an easy-care surface. For a premium near-black, the BLANCO Diamond 60/40 in Anthracite is our upgrade pick.
Best Black Granite Composite Sink Comparison Table
| Product | Best For | Type | Key Feature | Buy |
|---|---|---|---|---|
| KRAUS KGU-413B Black | Best Overall | Undermount granite composite | 31 in. single bowl, 8 7/8 in. deep | Check Price |
| BLANCO Diamond 60/40 Anthracite | Best Premium | BLANCO SILGRANIT double bowl | 60/40 double bowl in near-black anthracite | Check Price |
| KRAUS KGD-54 Black | Best Dual Mount | Dual-mount granite composite | 33 x 22 in., drop-in or undermount | Check Price |
| Ruvati epiGranite 33 in. Black | Best Made in Italy | Granite composite drop-in | Made in Italy, 80% crushed granite | Check Price |
| Karran QU-670 Black | Best Offset Drain | Quartz composite undermount | 80% quartz, right-side drain, 9 in. deep | Check Price |
| Lordear 33 in. Black Workstation | Best Value Workstation | Granite composite workstation | 33 x 19 in. matte black with ledges | Check Price |
| Fulorni 33 in. Black | Best Budget | Granite composite workstation | Highly rated value workstation | Check Price |
The 7 Best Black Granite Composite Sinks
Ranked by color durability, size, mounting options and verified-buyer feedback.
1. KRAUS Black Onyx 31 in. Undermount Granite Kitchen Sink KGU-413B
1. A best-selling black undermount that fits 33 in. cabinets.
👍 Pros & Cons
Pros
- Over 1,000 ratings
- Fits a 33 in. cabinet
- Hard, smooth, non-porous surface
Cons
- Bowl is narrower front to back than 19 in. sinks
- Undermount only
📄 Detailed Review
- Material: Quartz composite (look of granite)
- Exterior: 30 1/2 x 17 x 9 1/4 in.
- Bowl: 28 3/8 x 14 1/2 x 8 7/8 in.
- Min. cabinet: 33 in.
KRAUS makes this sink from quartz and acrylic resin, giving the look of natural granite with resistance to impact, scratches and heat.
At 31 in. wide it suits standard 33 in. sink bases, and the Black Onyx color hides most stains well.
2. BLANCO 440179 Diamond SILGRANIT 60/40 Double Bowl Undermount Sink – Anthracite
2. BLANCO SILGRANIT in deep Anthracite with a 60/40 layout.
👍 Pros & Cons
Pros
- Anthracite hides stains and water spots
- Classic 60/40 layout
- Nearly 500 ratings
Cons
- Anthracite is near-black, not true black
- Drain sold separately
📄 Detailed Review
- Material: SILGRANIT
- Size: 32 x 21 in.
- Layout: 60/40 double bowl
- Install: Undermount
Anthracite is BLANCO’s deep charcoal color, a popular alternative to pure black.
This 60/40 double bowl suits busy family kitchens.
3. KRAUS Black 33 in. Single Bowl Drop-In Granite Kitchen Sink KGD-54BLACK
3. Drop-in or undermount 33 in. single bowl.
👍 Pros & Cons
Pros
- Over 1,200 ratings
- Drop-in or undermount, ideal for retrofits
- Large 29 in. bowl
Cons
- Needs a 36 in. cabinet
- Thick deck sits above the counter when dropped in
📄 Detailed Review
- Material: Quartz composite (look of granite)
- Exterior: 33 x 22 x 9 5/8 in.
- Bowl: 29 x 16 3/8 x 9 in.
- Min. cabinet: 36 in.
This KRAUS Forteza sink can drop into any countertop or mount underneath stone, which makes it a favorite for replacing an old sink.
The 29 in. bowl fits sheet pans and large pots.
4. Ruvati 33 x 22 in. Midnight Black Granite Drop-In Sink RVG1033BK
4. Ruvati epiGranite colored all the way through.
👍 Pros & Cons
Pros
- Made in Italy
- Colored all the way through
- Matching black drain included
Cons
- Drop-in only
- One pre-drilled faucet hole
📄 Detailed Review
- Material: 80% granite, 20% resin
- Exterior: 33 x 22 in.
- Bowl: 29 x 16 1/2 in.
- Origin: Made in Italy
Ruvati’s epiGranite sinks are made in Italy from about 80% crushed granite and 20% resin, colored throughout.
This drop-in model is an easy retrofit for laminate or stone counters.
5. Karran QU-670 32 in. Black Quartz Composite Undermount Single Bowl Sink
5. Right-side drain frees cabinet space.
👍 Pros & Cons
Pros
- Offset drain frees cabinet space
- Sound dampening
- Deep bowl
Cons
- Fewer ratings
- Offset drain affects disposal layout
📄 Detailed Review
- Material: 80% quartz, acrylic resin
- Size: 32 in. single bowl
- Drain: Right-side placement
- Depth: 9 in.
Karran’s QU-670 places the drain to the right, leaving a flat working area in the bowl and more room below.
It is a quality black composite option.
6. Lordear 33 in. Matte Black Undermount Granite Composite Workstation Sink
6. Matte black with workstation ledges.
👍 Pros & Cons
Pros
- Budget-friendly workstation layout
- Matte black, fade-resistant color
- Quiet, dense material
Cons
- Ratings are shared across sizes and colors
- Less brand history than KRAUS or BLANCO
📄 Detailed Review
- Material: Quartz composite
- Exterior: 33 x 19 x 9.65 in.
- Drain: Standard 3 1/2 in.
- Min. cabinet: 36 in.
Lordear sells a range of quartz composite sinks; this 33 in. model adds front and back ledges for workstation accessories.
It is a value alternative to big-brand granite sinks.
7. Fulorni 33 x 19 in. Black Granite Composite Undermount Workstation Sink
7. A highly rated matte black workstation at a low price.
👍 Pros & Cons
Pros
- 4.8 average rating
- Low price for a workstation
- Matte black finish
Cons
- Few ratings so far
- New brand
📄 Detailed Review
- Material: Quartz composite
- Exterior: 33 x 19 x 9.65 in.
- Install: Undermount
- Feature: Front and back ledges
Fulorni’s 33 in. sink combines a matte black quartz composite with workstation ledges.
It has a high average rating, but from a small number of buyers.
How We Chose the Best Black Granite Composite Sink
To build this guide to the best black granite composite sink, we compared listing details on Amazon US: material (granite or quartz composite, stainless steel, fireclay or cast iron), exterior and bowl dimensions, bowl depth, minimum cabinet size, mounting style and what is included in the box. We then read patterns in verified-buyer reviews for chips, stains, fading, noise, drain fit and installation problems, and we flagged listings with few ratings.
Sinks touch food, so clean and sanitize them regularly and rinse produce in a clean basin, following USDA Food Safety and Inspection Service cleanliness guidance. Our research method is on the How We Test page; this is a research-based guide, not a lab test.
Buying Guide: How to Choose the Best Black Granite Composite Sink
Color Depth and Consistency
Good black composite sinks are colored through the material. Look for listings that mention color-stable or fade-resistant material.
Hard Water Film
Dark sinks show white mineral film in hard-water areas. Wipe the sink dry, and use a sink polish occasionally to keep the color even.
Mounting
Undermount gives a seamless look under stone counters. Dual-mount sinks can also drop into laminate.
Size and Cabinet
A 33 in. sink usually needs a 36 in. cabinet; a 31 in. sink can fit a 33 in. base.
Brand and Warranty
BLANCO, KRAUS, Elkay and Ruvati offer long warranties and clear specs; value brands cost less but have shorter histories.
True Black vs Anthracite
Some brands sell near-black colors such as Anthracite. They hide water spots slightly better than jet black and look softer in bright kitchens.
Tips for Keeping a Black Composite Sink Black
- Rinse and wipe the sink dry after use to prevent mineral film.
- Use a bottom grid to protect the surface from heavy pots.
- Avoid leaving coffee, tea or tomato sauce sitting in light sinks.
- Do not let drain cleaners or bleach sit on the surface.
- Check the minimum cabinet size before you buy.
Quick answers to common questions about dark composite sinks.
Frequently Asked Questions
What is the best black granite composite sink?
The KRAUS KGU-413B Black Onyx is the best black granite composite sink for most kitchens; BLANCO Anthracite is the premium choice.
Why does my black sink look white or chalky?
Usually hard-water mineral film. Clean with a sink polish or diluted vinegar, rinse and dry.
Do black composite sinks fade?
Quality sinks are color-stable, but harsh chemicals left on the surface can dull them.
Can I put hot pans in a black composite sink?
Most handle high heat, but check the maker’s rating and avoid sudden shocks.
Final Verdict
Our pick for the best black granite composite sink is the KRAUS KGU-413B. Choose BLANCO Anthracite for a premium near-black or the KRAUS KGD-54 for dual mounting.
Related Guides
Keep planning your sink setup with these guides:
Prices and availability change often. Check the current listing on Amazon before you buy.
