Deep mining is still carried out using traditional methods, with rectangular pits of 4’x8’, 6’x12’ or sometimes 6’x6’. The pits are reinforced by timber (mostly rubber wood) and planks from arecanut trees using ferns. In the first stage of the excavation, miners remove the non-gem-bearing material which includes soil, sand and gravel that does not contain any gems. This layer is excavated and meticulously sorted through to fill in the pit later on. A part of a deep gem mine showing reinforcement with timber, mainly rubber wood. This reinforcement is done at about 3–4 ft intervals Planks and logs are used to support the walls of the pits. Before being taken into the pits, they are cut to the required shapes and sizes. This also is part of the miner’s work. Logs most commonly used are of coconut, rubber and areca nut, all of which can stand a great amount of weight The initial investment in acquiring the wood is not very large.

Over the past few years, natural materials have been replaced by more modern equivalents. In many instances nowadays, wood may be substituted by steel plates, especially in deep mines.First, a vertical shaft is driven downward. This is then amplified with bamboo poles in both horizontal and vertical directions. Pumps ensure continuous operation for which remains free of the shaft of water. In this kind is so far continued digging until the miners discover a layer in which the precious gems can be found.