The digging is a collective work by a group, usually consisting of one family and its close relatives.
In 1985 a large raw diamond of 116.7 carats was found in a hole of 15 meters deep.
Martapura is the center of diamond and precious stones polishing; it is also the center of diamond marketing. The town is 40 km from Banjarmasin.
The polishing work uses traditional as well as modern equipment.
Martapura Plaza is the center of diamond and jewelry marketing. Stone-craft of various origins and forms are easily found in the markets of Martapura.
Pieces of jewelry having with a large price range, start from as little as Rp.500,- up to millions of rupiahs.
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