Letpadan (also rendered Letpaden) is a small town in the Bago region of central Burma (Myanmar), historically associated with secondary gem deposits including small ruby, spinel and zircon recoveries. The locality is far from the principal Burmese ruby mining centres of Mogok and Mong Hsu and the gem trade significance is correspondingly minor; in the trade literature, Letpadan is occasionally cited as a source on older labels for Burma rubies of small to moderate size, but virtually all commercial Burma ruby in the modern market originates from Mogok or Mong Hsu rather than Letpadan.

Sourcing context

Burma is the world's most prestigious historic source of ruby. The Mogok valley in northern Mandalay region produced essentially all the historic pigeon's blood rubies that defined the standard for the species, and the Mong Hsu deposit in Shan state, opened commercially in 1992, has supplied the bulk of modern Burmese ruby. Letpadan and similar peripheral localities are minor secondary sources of small alluvial ruby and other corundum products, and historically these have entered the trade as part of broader Burmese consignments without specific origin distinction.

For the modern buyer, the practical implication is that origin attribution to Letpadan is rare in the contemporary trade and would generally appear only on antique labels or in specialist mineralogical references. A current Burma ruby on a laboratory report (Gubelin, SSEF, GRS) will be attributed to Mogok or Mong Hsu, not Letpadan, and the trade premium attached to Mogok origin specifically does not apply to peripheral Burmese localities. The U.S. Burma sanctions regime (2008-2016, partially reinstated under various subsequent restrictions) restricted the import of Burmese ruby and jadeite into the U.S. for portions of this period; current rules should be checked for any Burma-origin material before importation.