Cobalt Black Granite Boulders
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In-Store Pickup
Not available for this item -
Boxed Shipment to Home or Jobsite
Not available for this item -
Local Delivery via Flatbed Truck
Not available for this item -
Local Delivery via Dump Truck
Not available for this item
Cobalt Black Granite Boulders
Elevate your landscape with the understated elegance of our Cobalt Black Granite Boulders. Featuring predominantly grey tones, these boulders exude strength, sophistication, and timeless appeal. Perfectly suited for modern, natural, or rustic designs, they bring a refined yet grounded presence to any outdoor space.
Sized from versatile 16-inch accents to commanding 34-inch centerpieces, Cobalt Black Granite Boulders are ideal for defining pathways, anchoring garden beds, or adding a bold focal point. Their dense, durable nature ensures they’ll withstand the elements while maintaining their sleek beauty year after year.
Each boulder is unique, with natural variations in texture and pattern that make every piece a one-of-a-kind addition to your project. Their smooth, polished look pairs effortlessly with other stone features while their rugged edges add organic character to your design.
Transform your landscape with the clean, classic beauty of Cobalt Black Granite Boulders. Whether you’re crafting a minimalist retreat or an eye-catching statement, these stones are as versatile as they are striking.
In Store Only | No |
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Bistrack Productcode | 10286 |
Bistrack ProductId | 10291 |
View Stock Label | In Stock |
Ships Via - Store Pickup | Yes |
Ships Via - UPS Package | No |
Ships Via - Flatbed Truck | Yes |
Ships Via - Dump Truck | No |
High volume | No |


3-Piece: Pattern 1


3-Piece: Pattern A


3-Piece: Pattern B




Interior Space
Meet the Arizona River Boulders : the boulder behemoths that aren’t just here to play—they’re here to dominate your landscape. These massive marvels are the granddaddies of the rock world, bringing all the swagger and style you could ever need.


Interior Space
Meet the Arizona River Boulders : the boulder behemoths that aren’t just here to play—they’re here to dominate your landscape. These massive marvels are the granddaddies of the rock world, bringing all the swagger and style you could ever need.


Interior Space
Meet the Arizona River Boulders : the boulder behemoths that aren’t just here to play—they’re here to dominate your landscape. These massive marvels are the granddaddies of the rock world, bringing all the swagger and style you could ever need.
Why Us?
See why contractors, builders, and homeowners turn to Whiz-Q Stone. From top-tier materials to expert support and a selection that fits every project, we’re here to help you get it done right.


Quality Materials
We carefully source our materials for quality and long-lasting performance, so you can feel confident in what you’re building.


Trusted Guidance
Our team is here to support you with knowledgeable guidance and helpful recommendations tailored to your project.


Something for Every Project
From small DIY projects to large commercial builds, our wide selection has you covered.
Transform Your Outdoor Spaces with Cobalt Black Granite Boulders
Cobalt Black Granite Boulders bring a touch of sophistication and strength to any landscape design, making them an ideal choice for residential, commercial, and large-scale projects. These natural black granite boulders offer a refined aesthetic with their rich, deep hues, and are well-suited for everything from garden accents to robust retaining walls. With a texture that catches the light beautifully, Cobalt Black Granite Boulders elevate outdoor spaces, adding a premium look to hardscape projects. Their versatile sizes and sustainable qualities make these granite boulders for landscaping the top choice for designers and homeowners alike. Discover where to buy Cobalt Black Granite Boulders online today and bring timeless elegance and functionality to your landscape.
- Distinctive Black Granite Finish: Provides a premium, natural look that complements a variety of landscaping themes.
- Premium Quality: Built to endure extreme weather, ensuring black granite landscape boulders last through all seasons.
- Design Flexibility: Whether for modern or rustic designs, decorative cobalt black granite stones for landscaping are always a good fit.
- Eco-Friendly Option: Using natural stones like these minimizes the need for synthetic materials in landscaping.
Explore our collection now and take the first step toward a beautifully enduring landscape! Whether you’re designing a garden, creating a striking pathway, or building a long-lasting retaining wall, these decorative granite boulders deliver premium quality and unmatched beauty. Perfect for both small garden accents and large-scale projects, these unique cobalt granite rocks are ready to enhance any space.
Explore more options in our Boulders & Outcroppings category for additional landscaping inspiration. Or else for a broader selection, check out our full range of Natural Stones to complement your outdoor design.