The Nga Mauk Ruby of Burma
Region — where it (roughly) is
Land & claims · BLM · live
The story
It was a stone fit for a king — a Mogok ruby of roughly 98 carats, drawn from the legendary ruby valley of upper Burma, set among the crown jewels of King Thibaw. The Nga Mauk. And then, in November 1885, the British took Mandalay, the royal palace was looted, and the great ruby slipped out of the historical record and into a century of suspicion.
The accusation has a name attached to it. The stone was allegedly taken by Col. Edward Sladen in 1885, plucked from the spoils of a fallen monarchy. In time, Britain returned more than 140 royal items to Burma — but not the Nga Mauk. It was simply not among them. And when the question is put directly to the Royal Collection, the answer is a quiet blank: it says it has no record of the stone at all.
That blank is the heart of the mystery. Every link in the chain that supposedly leads from Thibaw's crown to a specific surviving ruby is testimonial rather than documented — built on what people have said, not on what archives can prove. Identifying the Nga Mauk with any particular stone in any particular collection rests on claim and memory, not paperwork.
It has not been for lack of trying. The case has drawn serious investigators: Myanmar's Department of Archaeology, the archives of the Victoria and Albert Museum, and a 2017 BBC investigation led by Alex Bescoby, all picking at the same knot. None has produced the ruby. The Nga Mauk remains lost — a fabled stone known by reputation and accusation, its fate unresolved and its whereabouts, if it survives at all, unknown.
Fact vs. legend: The British looting of Mandalay Palace in November 1885 and Britain's later return of 140-plus royal items are documented, but the allegation that Col. Edward Sladen took the ~98-carat Nga Mauk ruby — and any identification of it with a specific surviving stone — is testimonial rather than documented, with the Royal Collection reporting no record of it; the ruby remains lost.
Search area: The point marks Mandalay Palace, Burma (Myanmar), taken during the British looting of November 1885 — the search area or landmark, not the treasure, whose exact location is unknown.