How Are Lab Created Gemstones Made?

To understand how lab gemstones are created, let us take a quick look of how they are created in nature. There are basically four ways that gemstones are created.

Igneous – These minerals are created deep within the earth, in the mantle. The mantle is where the magma churns below the crust of the earth. With time, thru erosion and mountain building these gemstones are pushed to the surface and are then mined.

Hydrothermal – Super saturated water that contains many different minerals are pushed into cracks and cavities in the earth.  The chemical make-up of the super saturated water determines what type of gemstone will be created. As the water cools, the minerals begin to crystalize.

Metamorphic – Most gemstones are made this way. It is when minerals are forced together under intense pressure and heat, they metamorphose (or change) into different minerals. Different combinations of minerals results in different types of gemstone.

Sedimentary – When water mixes with certain minerals, that mineral rich water seeps down into cracks and cavities in the earth’s crust and deposits layers of minerals.

Whether in a lab or underground, crystal gemstones grow when the right combination of minerals interact under specific conditions. In the lab, scientists have been able to re-create the conditions that produce natural mined gemstones and have even been able to speed up the growth of the crystals.

Whether mined or lab created they will both test the same. So, whether you are looking to buy or to sell a gemstone, assume that it is lab created unless there is a certificate verifying its origins, a gemologist’s report, or providence.

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Daye is an avid collector and researcher of all things vintage.

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