Is Diamond Crystal Made in USA?
Last checked Oct 16, 2026 · 6 verified products · see the evidence
Yes — Made in USA
Diamond Crystal manufactures its products in the United States — specifically in St. Clair, MI. This is based on the brand's public manufacturing claims; details below.
American Score
Average American Score across 6 verified products — scores ≥70% are shown on this site.
Manufacturing Details
- Made in
- St. Clair, MI
- Headquarters
- St. Clair, MI
- Location detail
- Specific city confirmed
- History
- Long-established (50+ years)
- Founded
- 1886
How we verified Diamond Crystal
Most recent check: Oct 16, 2026
From the brand's website
We re-read diamondcrystal.com on Sep 25, 2026 and did not find an explicit statement about where its products are made. This page relies on the other evidence below.Amazon listings
We read the live Amazon listing for 6 of the 6 Diamond Crystal products on this page (most recently Oct 16, 2026). None of them states where the product is made, so these products rely on the brand-level evidence above.
These checks are run by our software on a schedule: brand websites are re-read about every three weeks, Amazon listings weekly, and news is scanned monthly. Every flag is checked against its original source before anything on this page changes. How the American Score works.
About Diamond Crystal
Diamond Crystal has produced kosher salt in St. Clair, Michigan since 1886, and its hollow-crystal flake structure has made it the preferred salt of professional American chefs for over a century.
Heritage & History
Diamond Crystal Salt Company was established in St. Clair, Michigan in 1886, using an open-pan evaporation process to produce salt from underground brine deposits. The open-pan process produces salt crystals of distinctive shape — hollow, pyramidal flakes rather than the cubic crystals produced by standard evaporation or mining methods. These hollow crystals are lighter by volume than cubic salt crystals, which means a pinch of Diamond Crystal weighs less and seasons more delicately than the same pinch of table salt or denser kosher salts.
The hollow crystal structure has made Diamond Crystal the preferred kosher salt of professional American chefs who season by feel rather than weight. The crystals adhere to food surfaces more effectively than denser salt and dissolve faster on contact with moisture, producing seasoning that is distributed more evenly through cooked food.
Made in St. Clair, Michigan
Diamond Crystal is produced at the St. Clair, Michigan facility using the open-pan evaporation process that has been the company's method since 1886. Underground Michigan brine is pumped to the surface, clarified, and then evaporated in open pans at carefully controlled temperatures that produce the characteristic hollow crystal structure. The resulting salt is pure sodium chloride with no anti-caking agents, iodine, or other additives — just the mineral produced by the evaporation of natural brine.
The Michigan facility represents over 130 years of continuous operation using a manufacturing process that cannot be easily replicated — the hollow crystal structure is a consequence of the open-pan conditions that require facility investment and operational expertise developed over generations.
American-Made Diamond Crystal Products
Frequently Asked Questions
Is Diamond Crystal made in the USA?
Yes. Diamond Crystal is made in the United States, manufactured in St. Clair, MI. Diamond Crystal salt has been produced in St. Clair, Michigan since 1886. The unique hollow crystal flake structure is the product of the open-pan evaporation process used at the St. Clair facility. Strong Made in USA claim. The preferred kosher salt of professional American chefs for over 130 years.
Where is Diamond Crystal made?
Diamond Crystal is made in St. Clair, MI. The company is headquartered in St. Clair, MI.
Which Diamond Crystal products are made in the USA?
We carry 6 verified American-made Diamond Crystal products across Food & Beverages. Every listing links directly to a trusted online store with verified manufacturing evidence.