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Authority vs Diamond

Authority is branded by PetSmart LLC and made by third-party co-packers, and Diamond is made by Diamond Pet Foods (owned by Schell & Kampeter, Inc.), and both make food for cats and dogs. On KibbleLab, Authority and Diamond both average 8.7 out of 10.

Authority and Diamond compared

Authority Diamond
Manufacturer PetSmart LLC Diamond Pet Foods
Parent company Independent Schell & Kampeter, Inc.
Founded 1986 1970
Headquarters Phoenix, Arizona, USA Meta, Missouri, USA
Manufacturing Whether a brand makes its own food in-house or has it produced by an outside contract manufacturer or co-packer.
Co-packer In-house
Made in United States United States
Manufacturing region Not listed Missouri
Products listed 64 7
Serves Cats & dogs Cats & dogs
Price tier A relative price guide, from $ (most affordable) to $$$$$ (most premium), based on the brand's typical retail cost.
$$ $$
WSAVA guidelines The World Small Animal Veterinary Association (WSAVA) publishes criteria for evaluating a manufacturer: qualified nutritionists on staff, feeding trials, and published research. It does not certify or endorse brands.
No No
PSC accredited The Pet Sustainability Coalition is a nonprofit that accredits pet companies on their environmental and social impact, through third-party verification. It reflects sustainability practices, not food quality.
No No
Score The average KibbleLab score across this brand's scored foods, on a 0 to 10 scale. Foods are scored on published veterinary science. How scoring works .
8.7 (avg of 64) 8.7 (avg of 7)
Recalls on record We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.
None None
Where to buy
Amazon
Amazon

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Authority vs Diamond: how they compare

Scores

Authority and Diamond average the same KibbleLab score, 8.7 out of 10, across 64 and 7 scored foods. Scores apply the same criteria-based rubric to every food, drawn from published veterinary science.

Who makes them

Authority is a brand of PetSmart LLC, based in Phoenix, Arizona, USA, founded in 1986. Its food is made by third-party co-packers in United States. Diamond is made by Diamond Pet Foods, owned by Schell & Kampeter, Inc., based in Meta, Missouri, USA, founded in 1970.

Standards and range

Neither meets WSAVA's published manufacturer criteria. KibbleLab lists 64 Authority foods and 7 Diamond foods.

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Common Questions

Which scores higher on KibbleLab, Authority or Diamond?

Authority and Diamond average the same KibbleLab score, 8.7 out of 10.

Who makes Authority and Diamond?

Authority is a brand of PetSmart LLC. Its food is made by third-party co-packers in United States. Diamond is made by Diamond Pet Foods, which is owned by Schell & Kampeter, Inc.

Which brand has more products on KibbleLab?

Authority has 64 products in the KibbleLab database, compared with 7 for Diamond.

Where is each brand based?

Authority is based in Phoenix, Arizona, USA. Diamond is based in Meta, Missouri, USA.

Have Authority or Diamond been recalled?

Neither Authority nor Diamond has a recall on record in the KibbleLab database. We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.

See the full profiles: Authority and Diamond .

More comparisons

KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.

This is a neutral, factual comparison, not a ranking or an endorsement of either brand. KibbleLab may earn affiliate commissions through links. No one can pay for placement or a higher score.

Brand and manufacturer details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing. Recall data is compiled from public FDA filings, and a filing may name the parent company rather than the brand. We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.

KibbleLab scores and commentary are editorial opinions based on published data. Represent one of these brands? Request a correction. Anyone else can email us. See our Terms.