Blue Diamond Knife Set: What You Should Know Before Buying

Blue Diamond is a brand most people recognize from their non-stick cookware, the pans with the cerulean blue ceramic coating and the diamond-infused marketing. What many shoppers don't realize is that Blue Diamond also makes a line of kitchen knives, and those knives bring the same design philosophy as the pans: distinctive color, non-stick surface treatment, and a focus on everyday functionality at an accessible price.

This guide covers what's in the Blue Diamond knife set, how the knives actually perform, what the blue coating is and how to take care of it, and whether this set makes sense for your kitchen.

What Blue Diamond Actually Makes

Blue Diamond's knife line typically comes in a few configurations, a 14-piece block set being the most popular, along with smaller sets and individual knives. The knives feature the brand's signature blue-tinted blades with a non-stick coating, matching handles, and usually a knife block in a coordinating design.

The flagship product for most shoppers is the Blue Diamond 14-piece knife block set, which includes: - 8-inch chef's knife - 8-inch bread knife (serrated) - 7-inch santoku knife - 5-inch utility knife - 3.5-inch paring knife - Six steak knives - Shears - Knife block

The piece count includes both the prep knives you'll use daily and the steak knives, which are table knives rather than kitchen prep tools. This is standard practice for block sets at this price point.

The Blue Coating: What It Is and How It Works

The blades in Blue Diamond knives have a ceramic-infused non-stick coating applied over high-carbon stainless steel. This is similar in concept to how Blue Diamond's cookware works, the coating reduces food sticking, makes the blade surface easier to wipe clean, and gives the knife its distinctive blue appearance.

The coating isn't paint. It's a baked-on non-stick layer, similar to what you'd find on coated cookware. Food that tends to cling to plain steel, hard-boiled eggs, avocado, moist cheese, releases more cleanly from the coated surface. This is genuinely useful for certain cutting tasks.

A few things to understand about the coating:

It doesn't improve cutting performance. The edge geometry and steel hardness determine how well the knife cuts. The coating affects food release and aesthetics only. A coated blade cuts through an onion the same as an uncoated blade of equal sharpness.

It will wear over time. No non-stick coating is permanent. With proper care (hand washing, appropriate sharpeners, reasonable storage), the coating should last for years. Dishwashers, metal-on-metal contact in drawers, and aggressive abrasive sharpeners all accelerate wear.

It can chip near the edge. The thinnest part of the blade, near the cutting edge, is also where the coating is most vulnerable. This is typically cosmetic rather than functional, but it's worth knowing.

The Steel Underneath

Blue Diamond knives use high-carbon stainless steel for the blade substrate. This is standard for mid-range and budget knives, it offers decent corrosion resistance and holds an edge adequately for home use.

The steel hardness is not published by the brand, which is a minor transparency issue. Most similarly-priced knives in this category run around 54-58 HRC, which is on the softer end of the spectrum. Softer steel is easier to sharpen but requires more frequent sharpening. For a home cook who maintains their knives, this isn't a dealbreaker.

The blades appear to be stamped rather than forged. Stamped knives are cut from rolled sheet steel, which makes them lighter and less expensive than forged knives cut from a single billet. Many professional cooks use stamped knives by choice, lighter weight reduces fatigue during long prep sessions. For home use, stamped construction is perfectly adequate.

Handle Design and Comfort

Blue Diamond knives feature a straight, ergonomic handle design. The handles are made from a hard ABS-style plastic in a color that coordinates with the blade. They're comfortable for most hand sizes and provide good grip in normal dry conditions.

Wet-hand grip is less impressive than rubberized or textured handles, which is worth noting if you cook with frequently wet hands. The smooth surface can feel slippery with water or cooking oils. This isn't unusual for hard plastic handles, but it's a consideration if you'll be moving between washing tasks and cutting.

The handles are full-tang construction (the blade extends through the handle), which provides better balance and durability than partial-tang designs.

How the Blue Diamond Set Performs in Practice

Chef's knife: The 8-inch chef's knife is the most-used piece in any set. Blue Diamond's version handles everyday prep tasks well, dicing onions, slicing chicken breast, cutting through most vegetables. It doesn't feel as refined as a forged German or Japanese knife, but for a set in this price tier, it does the job.

Bread knife: Serrated knives are the great equalizers in any set. Even budget serrated bread knives cut through crusty bread and tomatoes reliably, because the serrations do the work. The Blue Diamond bread knife performs as expected, no complaints.

Santoku: The santoku profile (flat belly, straighter edge) works well for chopping vegetables with an up-and-down motion. Blue Diamond's santoku is a useful addition if you prefer this style over the curved Western chef's knife.

Paring knife: Functional for trimming and detail work. The blade is stiff enough for most tasks.

Steak knives: These are table steak knives, not kitchen tools. They're fine for dining but aren't relevant to prep work. If you have six people who need steak knives at the table, these work. If not, they're just filler in the piece count.

Shears: The included shears are adequate for light tasks, cutting herbs, trimming chicken, opening packaging. They're not the same quality as dedicated kitchen shears, but they serve a purpose.

Comparing Blue Diamond to Other Colored Sets

Blue Diamond competes with other non-stick coated knife sets in the $40-$80 range. Brands like Cuisinart Color Pro, Farberware EdgeKeeper, and various Amazon-direct brands offer similar products.

The Blue Diamond advantage is the brand recognition that comes with the cookware line. If you already use Blue Diamond pans and trust the brand, the knives are a natural extension. The quality level is comparable to competitors at similar price points.

If you're not committed to the Blue Diamond brand specifically, brands like Cuisinart and Farberware have similarly sized sets at overlapping price points and broadly similar quality.

Caring for Blue Diamond Knives

Hand wash only. Even if the manufacturer claims dishwasher compatibility, hand washing is strongly recommended. Dishwasher cycles, with their high heat and harsh detergents, degrade non-stick coatings faster than any other single factor. A 30-second hand wash extends the coating life significantly.

Dry immediately. Don't leave the knives sitting wet. Even stainless steel can develop surface spots if left in a damp environment.

Use the knife block. The set comes with a block for a reason. Blade-on-blade contact in a drawer chips edges and coating.

Sharpen with the right tools. A pull-through ceramic sharpener or a ceramic rod is gentle enough for the coating. Aggressive diamond sharpeners remove coating material. The blades will need periodic sharpening, hone regularly with a smooth steel or ceramic rod to extend the time between full sharpenings.

Don't use glass or ceramic cutting boards. Wood or plastic boards are appropriate for any knife; hard surfaces kill edges faster.

Who This Set Is Right For

Good match: - Shoppers who want a matching set that coordinates with their Blue Diamond cookware - Home cooks who want a functional set at an accessible price without a big investment - Anyone equipping a first kitchen who wants a complete solution in one box - Households that need steak knives along with prep knives

Not a great match: - Serious home cooks who want high-performance blades they'll use daily for years - Anyone who prefers the feel of heavier, forged knives - Cooks who want to get into proper knife sharpening, coated blades need more careful treatment

Price and Value Assessment

Blue Diamond knife sets typically range from $40 to $80 depending on the set size and whether it's on sale. For that price, you're getting a complete kitchen knife solution with decent steel, a non-stick coating that aids food release, and attractive aesthetics.

The value proposition is reasonable if you want an all-in-one set with a cohesive look. It's not a set for knife enthusiasts who care deeply about edge retention and steel hardness. For casual home cooks, it's a solid option.

If you want to see how Blue Diamond compares to other options, our Best Kitchen Knives guide and Top Kitchen Knives roundup cover a wider range of options across categories and price points.

FAQ

Is the Blue Diamond knife set good quality? For the price range, yes. The knives are functional, the coating works as advertised, and the set covers the main prep tasks in a home kitchen. They're not professional-grade, but they're not positioned to be.

How do you sharpen Blue Diamond knives without ruining the coating? Use a ceramic honing rod for regular maintenance, this doesn't remove significant material. For occasional sharpening, a pull-through sharpener with ceramic wheels works well. Avoid coarse diamond abrasive sharpeners, which strip the coating quickly.

Can Blue Diamond knives go in the dishwasher? The brand may say yes, but hand washing is genuinely better for the coating and the blade. High-heat dishwasher cycles wear non-stick coatings faster than anything else.

What is the blue coating made of? Blue Diamond uses a ceramic-infused non-stick coating over stainless steel. Similar in concept to their cookware, the coating provides food release benefits and the distinctive color.

How does the Blue Diamond knife set compare to Cuisinart? Both are mid-range coated knife sets at similar price points. Blue Diamond has an edge in brand recognition from its cookware line. Quality is broadly comparable, choose based on which aesthetic appeals more.

Does the coating affect cutting performance? No. Cutting performance is determined by the edge angle, steel hardness, and how well the knife is maintained. The coating only affects food release and appearance.

How long does the non-stick coating last? With proper care, hand washing, appropriate storage, ceramic-based sharpening, the coating should remain in good condition for two to three years of regular home use. Dishwasher use and improper storage will shorten that timeline considerably.