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N LOST TREASURE · CASE FILE Lost Carnot Bay Diamonds (Diamond Dakota Mystery) Carnot Bay, Kimberley Region, Western Australia -17.53°S 122.17°E · search-area center

Carnot Bay Diamonds (Diamond Dakota Mystery)

Lost Treasures · Carnot Bay, Kimberley Region, Western Australia (~100 km north of Broome)
Reported valueUncut diamonds valued at £300,000 in 1942 (tens of millions today)
LOST · map confidence: Medium Exact location unknown by definition; the point is the center of the associated search area or landmark.
From the Lodester Lost-Treasures master compilation; per that reference every point is a search-area/landmark center, not the treasure itself.

Region — where it (roughly) is

Self-hosted view on USGS Topo — the dot is the search-area center, not the treasure.

Land & claims · BLM · live

Loading land status…
Surface manager + active mining claims at this point, live from BLM. The "open to location" notes are a general 1872-Mining-Law guide, not BLM output — decision-support only; verify with BLM MLRS and on the ground before staking or entry.

The story

A fortune in diamonds fell out of the sky onto a remote Australian beach — and most of it was never seen again. On 3 March 1942, with the Japanese advance sweeping through the Pacific, a KNILM DC-3 named "Pelikaan" fled south carrying a package of uncut diamonds. Piloted by Captain Ivan Smirnoff, the airliner was attacked by Japanese Zeros and force-landed at Carnot Bay, on the lonely Kimberley coast of Western Australia, north of Broome. The plane was down, the war was closing in, and the diamonds were loose on an empty shore.

What happened next turned a wartime crash into a decades-old mystery. A beachcomber named Jack Palmer later found the diamond package — and surrendered only a small portion of it. Suspicion followed. In 1943, Palmer and two associates were tried for theft. They were acquitted. The verdict closed the courtroom but not the question, because the bulk of the diamonds was never recovered.

And they likely never will be in one place. Unlike a buried chest waiting under an X, these stones appear to have been dispersed rather than cached — scattered, broken up, slipped quietly into the world rather than hidden in a single spot. The "Diamond Dakota" mystery endures not because a hoard lies waiting, but because a fortune simply vanished, piece by piece, into hands that never gave it back.

Fact vs. legend: The 1942 shootdown and forced landing of the KNILM DC-3 "Pelikaan" under Captain Smirnoff at Carnot Bay, Jack Palmer's discovery of the diamond package, the partial surrender, and the 1943 theft trial and acquittal are documented; the bulk of the diamonds was never recovered and appears to have been dispersed rather than cached.

Search area: The point marks Carnot Bay, Kimberley Region, Western Australia (~100 km north of Broome) — the search area or landmark, not the treasure, whose exact location is unknown.

Sources & finds

Base story rewritten from the cited public sources above. Claims were tagged fact / contested / legend during research. The map point (if any) is an interpreted search-area center — not a verified treasure location. Not an invitation to trespass; always verify land status and access before entering any site.