Cooked?Diamond Mart
- gradeGrade A
- inspection score92 pts
- critical violations1
- last inspectedMarch 16, 2026 →
- address22628 Golden Springs Dr, Diamond Bar 91765
Is Diamond Mart clean?
Diamond Mart is currently Grade A from LA County Department of Public Health, Environmental Health, from an inspection on March 16, 2026. Inspectors wrote up 1 critical violation — the kind most directly linked to foodborne illness. On Cooked's ladder that reads clean 😇.
What did inspectors find at Diamond Mart?
These are the violations recorded at the most recent inspection on March 16, 2026, in plain English, with the city's own wording underneath.
- ⚠️TOXIC SUBSTANCES PROPERLY IDENTIFIED, STORED, AND USED
- ⚠️PREMISES; PERSONAL/CLEANING ITEMS; VERMIN-PROOFING
- ⚠️HOT AND COLD WATER AVAILABLEcritical
- ⚠️TOILET FACILITIES: PROPERLY CONSTRUCTED, SUPPLIED, CLEANED
- ⚠️FLOORS, WALLS AND CEILINGS PROPERLY BUILT, MAINTAINED AND CLEAN
When was Diamond Mart last inspected?
Diamond Mart has 2 inspections on record going back to July 22, 2024, averaging 95 points.
March 16, 2026 A
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View full inspection →July 22, 2024 A
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View full inspection →Diamond Mart vs City Of Diamond Bar
City Of Diamond Bar runs 92% clean across 168 tracked restaurants — 155 clean, 10 mid, 3 cooked.
Against the 168 spots Cooked tracks in City Of Diamond Bar, this one comes out cleaner than 21% of them.
Other spots in City Of Diamond Bar
How Los Angeles grades restaurants
Los Angeles County posts a letter placard in the window, and unlike New York the score runs the friendly way: higher is better. 90 to 100 points earns an A, 80 to 89 a B, and anything below that a C. The county inspects roughly every six months to a year depending on risk, and a failed inspection can close a kitchen until it is fixed. Because LA’s scores are final at the time of inspection — there is no pending window — a letter can be read straight off the score when the placard field is blank.
Read the Los Angeles ratings guide →
Inspection findings and available history come from the authority’s published records. Cooked checks daily, but the authority publishes in batches, so a recent visit may not appear yet. Read the date on each result and check the official source for newer information.
Source: LA County Department of Public Health, Environmental Health via LA County Open Data. Cooked refreshes this data daily — this listing's most recent inspection is dated March 16, 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.