Filthy Diamond

• gradeGrade A ⏳
• grade postedSeptember 22, 2024
• inspection score24 pts
• critical violations3
• last inspectedApril 30, 2026 →
• address679 Knickerbocker Avenue, Brooklyn 11221
• cuisineAmerican
• phone3472405222

Is Filthy Diamond clean?

Filthy Diamond currently carries Grade A ⏳ from NYC Department of Health and Mental Hygiene (DOHMH). It was posted on September 22, 2024 and still stands. The place has been inspected again since — on April 30, 2026 scoring 24 points — but NYC Department of Health and Mental Hygiene (DOHMH) has not ruled on that visit, so no new grade has been issued. Inspectors wrote up 3 critical violations — the kind most directly linked to foodborne illness. On Cooked's ladder the posted grade reads clean 😇; the numbers above come from the newer visit.

What did inspectors find at Filthy Diamond?

These are the violations recorded at the most recent inspection on April 30, 2026, in plain English, with the city's own wording underneath.

• 🌡️fridge is giving… room tempcritical
  Cold TCS food item held above 41 °F; smoked or processed fish held above 38 °F; intact raw eggs held above 45 °F; or reduced oxygen packaged (ROP) TCS foods held above required temperatures except during active necessary preparation.
• 🍽️food left out / unprotectedcritical
  Food, supplies, or equipment not protected from potential source of contamination during storage, preparation, transportation, display, service or from customer’s refillable, reusable container. Condiments not in single-service containers or dispensed directly by the vendor.
• ⚠️Ashtray present in smoke-free area.
• 🛠️facility / equipment issue
  Dishwashing and ware washing: Cleaning and sanitizing of tableware, including dishes, utensils, and equipment deficient.
• 🧽surfaces not properly sanitizedcritical
  Food contact surface not properly washed, rinsed and sanitized after each use and following any activity when contamination may have occurred.
• 🧫equipment / surface issue
  Wash hands sign not posted near or above hand washing sink.
• 🍲hot food sitting too coolcritical
  Hot TCS food item not held at or above 140 °F.
• 🧤food-handling slipcritical
  Tobacco or electronic cigarette use, eating, or drinking from open container in food preparation, food storage or dishwashing area.
• 🧫food contact surfaces dirty
  Design, construction, materials used or maintenance of food contact surface improper. Surface not easily cleanable, sanitized and maintained.

When was Filthy Diamond last inspected?

Filthy Diamond has 2 inspections on record going back to September 22, 2024, averaging 18 points.

Filthy Diamond vs Bushwick North

Bushwick North runs 77% clean across 342 tracked restaurants — 226 clean, 17 mid, 50 cooked.

Against the 342 spots Cooked tracks in Bushwick North, this one comes out cleaner than 58% of them.

Other spots in Bushwick North

• A Levantine Shawarma
  clean · December 4, 2025
• A Werkshop
  clean · March 11, 2026
• A Nowon
  clean · May 17, 2025
• A La Michoacana
  clean · August 19, 2025
• A St Michel Cafe & Bakery
  clean · July 31, 2026
• B Mi Bella Dama
  mid · April 7, 2026

See every restaurant inspection in Bushwick North →

How New York grades restaurants

New York City health inspectors score violations in points, and lower is better: 0–13 points earns an A, 14–27 a B, and 28 or more a C. Every restaurant is inspected at least once a year, and the letter has to be posted in the window. A restaurant that scores 14 or more on the first inspection of a cycle does not get a letter right away — it stays “Grade Pending” until a re-inspection settles it, which is why some spots here show an hourglass instead of a letter. Cooked only ever shows a letter the city actually posted; we never infer one from a score.

Read the New York ratings guide →

Inspection findings and available history come from the authority’s published records. Cooked checks daily; publication can lag behind an inspection. Read the date on each result and check the official source for newer information.

Source: NYC Department of Health and Mental Hygiene (DOHMH) via NYC Open Data. Cooked refreshes this data daily — this listing's most recent inspection is dated April 30, 2026. Inspection results describe one moment in a kitchen's life, not a permanent verdict.

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Cooked covers 10 cities on official inspection data — see who's clean, mid, or cooked near you.