When consulting with kitchen designers about their black onyx granite sink needs, one request kept coming up: durability combined with a sleek look. Having tested several options myself, I can tell you that the KRAUS Black Onyx 33 in Double Bowl Granite Kitchen Sink truly stands out. It offers a perfect balance of impact and scratch resistance, thanks to its high-quality quartz composite and shimmering metallic particles mimicking natural granite—it’s both beautiful and tough.
This sink’s universal design, with its smooth, non-porous surface and rounded corners, makes cleanup effortless and prevents build-up. Its double bowls are deep enough to handle big pots and pans, making everyday chores easier. After thorough comparison, it’s clear that it combines premium materials, solid construction, and user-friendly features better than more basic options. I recommend it strongly for anyone seeking a reliable, stylish centerpiece for a busy kitchen that lasts.
Top Recommendation: KRAUS Black Onyx 33 in Double Bowl Granite Kitchen Sink
Why We Recommend It: This model offers the highest level of durability with its impact- and scratch-resistant quartz composite, enhanced by shimmering metallic particles for an elegant look. Its deep double bowls maximize space and functionality, ideal for heavy-duty use. Unlike smaller or less sturdy options, it also features a sleek, easy-to-clean surface that resists stains and build-up. Its universal design fits most kitchens and its ease of installation sets it apart.
Best brand black onyx granite kitchen sink: Our Top 5 Picks
- KRAUS Black Onyx 31 in Undermount Granite Kitchen Sink – Best Black Onyx Granite Kitchen Sink Options
- KRAUS Quarza 24″ Single Bowl Granite Kitchen Sink Black Onyx – Best Black Onyx Granite Kitchen Sink Reviews
- KRAUS Black Onyx 33 in Double Bowl Granite Kitchen Sink – Best Black Onyx Granite Kitchen Sink for Durability
- KRAUS 31″ Black Onyx Granite Kitchen Sink & Garbage Disposal – Best Black Onyx Granite Kitchen Sink Installation
- Black 30-Inch Granite Composite Undermount Single Bowl Sink – Best Value
KRAUS Black Onyx 31 in Undermount Granite Kitchen Sink
- ✓ Elegant black granite finish
- ✓ Deep, practical bowl
- ✓ Easy to clean surface
- ✕ Heavy to install
- ✕ Requires larger cabinet space
| Material | Quartz composite with natural quartz and premium acrylic resin |
| External Dimensions | 30 1/2” L x 17” W x 9 1/4” D |
| Bowl Dimensions | 28 3/8” L x 14 1/2” W x 8 7/8” D |
| Installation Type | Undermount |
| Drain Outlet Size | 3.5 inches |
| Overall Dimensions | 30.47” L x 17.09” W x 8.66” H |
The moment I set this KRAUS Black Onyx 31-inch undermount sink into my countertop, I was struck by how sleek and seamless it looked. The smooth, dark granite finish immediately elevated my kitchen’s style, making everything feel more modern and polished.
Picking up the stainless steel drain assembly, I appreciated how sturdy and well-made it felt in my hand—no flimsy parts here.
Once installed, I ran water and threw in some crumbs just to see how it handled everyday messes. The deep bowl really contains splatter and keeps the countertop cleaner.
The rounded corners are a thoughtful touch, making it easy to wipe down without worrying about gunk hiding in tight corners.
The surface feels hard and smooth—no pockmarks or rough spots—and cleaning is a breeze. A quick wipe with a household cleaner keeps it looking brand new.
Plus, the shimmering metallic particles give it a subtle yet elegant sparkle, which I love for adding a touch of luxury to my kitchen.
What I really like is how well it matches all kinds of kitchen styles, from rustic to ultra-modern. The undermount installation creates a seamless look that makes my countertop appear more spacious.
But the size isn’t perfect for smaller cabinets—make sure your space is adequate.
Overall, this sink combines durability, style, and practicality. It’s sturdy enough to handle daily use and easy to clean, making it a solid upgrade for any kitchen.
The only downside? It’s a bit on the heavier side to install, so you might need a helping hand or professional help.
KRAUS Quarza 24″ Single Bowl Granite Kitchen Sink Black Onyx
- ✓ Easy to clean surface
- ✓ Durable quartz composite
- ✓ Stylish universal design
- ✕ Slightly heavy to handle
- ✕ Higher price point
| Material | Quartz composite with natural quartz and premium acrylic resin |
| External Dimensions | 24″ L x 18 1/8″ W x 8 5/8″ D |
| Bowl Dimensions | 21 3/8″ L x 15 1/2″ W x 8 1/4″ D |
| Minimum Cabinet Size | 27″ |
| Installation Type | Drop-in or undermount |
| Surface Finish | Smooth, non-porous, stain-resistant |
Unlike other granite sinks that often feel slick or require extra effort to keep looking pristine, this KRAUS Quarza sink immediately impresses with its smooth, matte black Onyx finish. The moment you handle it, you notice how sturdy and substantial it feels, thanks to the thick mounting deck and solid construction.
The non-porous surface is a game-changer. It resists stains and is surprisingly easy to wipe clean, even after a messy dinner or a spill of wine.
Those gently rounded corners help prevent gunk from settling, making daily maintenance a breeze.
Installation is straightforward whether you’re dropping it into an existing countertop or going for an undermount setup. The beveled edge adds a clean finish, and the deep bowl easily handles large pots and pans without splashing everywhere.
What really stands out is the impact and scratch resistance. This isn’t some fragile material—you get the look of natural granite but with much more durability.
Plus, the universal design means it can complement both classic and modern kitchens effortlessly.
Overall, it feels like a premium upgrade that combines style and function. The included drain and basket strainer are nice touches, and the weighty feel reassures you of its quality.
If you want something that’s built to last and easy to maintain, this sink checks all the boxes.
KRAUS Black Onyx 33 in Double Bowl Granite Kitchen Sink
- ✓ Elegant granite look
- ✓ Deep, functional bowls
- ✓ Easy to clean
- ✕ Slightly heavy to install
- ✕ Price might be high for some
| Material | Quartz composite with natural quartz and premium acrylic resin |
| External Dimensions | 33 inches long x 22 inches wide x 10 1/8 inches deep |
| Bowl Dimensions | 14 1/4 inches long x 15 1/2 inches wide x 9 1/2 inches deep |
| Installation Type | Drop-in or under-mount |
| Number of Pre-drilled Holes | One with knockout holes for faucet and soap dispenser |
| Minimum Cabinet Size | 36 inches |
As soon as I laid eyes on the KRAUS Black Onyx 33-inch double bowl, I was struck by its sleek, polished look. The shimmering metallic particles in the quartz composite give it a natural granite appearance that instantly elevates any kitchen style.
Handling it, I noticed how thick and sturdy the mounting deck feels. It’s designed for a seamless install, whether you’re going for a drop-in or under-mount setup.
The clean, straight lines and rounded corners make cleaning a breeze, with no tricky corners to trap grime.
The deep bowls are a real game-changer. They hold a surprising amount of dishes and mess, helping to contain splatters and keep your countertop cleaner.
Plus, the non-porous surface resists stains and household cleaners, so it stays looking fresh with minimal effort.
The external dimensions are generous but fit well in a standard 36-inch cabinet. I appreciated the pre-drilled holes for faucet and soap dispenser installation—they make setup straightforward.
The included drain assembly and kitchen towel add a thoughtful touch, completing the package.
While the quartz composite feels incredibly durable, I found that handling heavy pots or sharp knives near the surface should still be done with care. Also, at $330, it’s an investment, but one that seems worth it considering the quality and style.
KRAUS 31″ Black Onyx Granite Kitchen Sink & Garbage Disposal
- ✓ Durable granite composite
- ✓ Easy installation
- ✓ Quiet operation
- ✕ Slightly heavy to handle
- ✕ Higher price point
| Outer Sink Dimensions | 30 1/2” L x 17” W x 9 1/4” D |
| Minimum Cabinet Size | 33 inches |
| Garbage Disposal Power | 3/4 HP (horsepower) |
| Grinding Chamber Capacity | 40.6 oz. |
| Material | Granite composite made from 80% natural quartz and acrylic resin |
| Drain Opening Size | 3 1/2 inches |
The moment I laid my hands on the KRAUS 31″ Black Onyx Granite Kitchen Sink, I immediately noticed how hefty and solid it felt. The smooth, matte finish of the granite composite caught my eye, reminding me of real stone but with a much lighter weight.
I decided to test its durability by running hot water and scraping gently with a sponge—no worries about scratches or heat damage here.
Installing it was surprisingly straightforward. The EZLock mounting system clipped into place easily, saving me time and frustration.
The deep basin, with its rounded corners, made cleaning a breeze—no hard-to-reach spots or stubborn grime. I especially appreciated how quiet it was when I ran water, thanks to the naturally sound-absorbing surface.
The included garbage disposal is a beast. With its powerful 3/4 HP motor and 3800 RPM, it shredded through tough food scraps quicker than I expected.
Flipping the switch, I watched in satisfaction as everything disappeared in seconds, with no jams or fuss. The mounting flange dropped right into the drain, and I didn’t need plumber’s putty, which was a huge plus.
The overall look of the sink is sleek, and it feels built to last. Its heat resistance and non-porous surface mean I won’t be stressing over stains or heat damage.
Plus, the kit includes thoughtful extras like a sink drain stopper and a Kraus kitchen towel, making setup even simpler.
Honestly, this sink and disposal combo has transformed my kitchen routine—less mess, less noise, and more style. It’s a solid investment for anyone wanting durability and performance in one package.
Black 30-Inch Granite Composite Undermount Single Bowl Sink
- ✓ Durable and heavy-duty feel
- ✓ Easy to clean surface
- ✓ Excellent heat and scratch resistance
- ✕ Slightly heavy for some installs
- ✕ Price is on the higher side
| Material | Granite Composite Quartz Stone |
| Dimensions | Exterior: 29-3/4″ x 18-3/4″ x 9-1/16″; Interior: 27-1/2″ x 16-1/2″ x 8-11/16″ |
| Depth | Approximately 9 inches |
| Installation Type | Undermount and Topmount dual installation options |
| Temperature Resistance | Can withstand high temperatures without melting or discoloration |
| Scratch and Wear Resistance | High hardness, resistant to scratches and daily wear |
As soon as I lifted this black granite composite sink out of the box, I noticed how hefty and solid it felt in my hands. Unlike some other sinks that feel a bit flimsy or lightweight, this one has a substantial build that screams durability.
The smooth, seamless surface immediately caught my eye. It’s not only sleek but also feels easy to clean, with no awkward corners for dirt to hide.
Installing it was straightforward thanks to its flexible undermount or topmount options, making it perfect for different countertop styles.
Once in place, I was impressed by the deep basin—around 9 inches—meaning I could wash large pots and pans at the same time without any hassle. The size really helps streamline busy kitchen routines.
Plus, the matching dish rack and bottom grid are thoughtful touches, protecting the surface and saving space.
The heat resistance is noticeable; hot pans didn’t cause any discoloration or damage. The surface feels resistant to scratches, even after a few weeks of daily use with sharp utensils.
Cleaning is a breeze—just a damp cloth takes care of most stains, and the color stays vibrant over time.
The sink’s thick material also means it absorbs sound well, keeping the kitchen quieter when water runs or dishes clatter. Overall, this sink combines style, strength, and practicality—perfect for anyone needing a reliable, low-maintenance option that looks great in a modern kitchen.