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Microwaved diamonds don't come from dirty mines or bloody conflicts, and people who buy them don't care that they were made in a laboratory. They're real and they're less expensive than those dug out of the ground.
Man-made gems make up just a fraction of the global diamond market, but demand is increasing as buyers look for stones that are free of ethical taint.
Those grown in a lab have the same physical characteristics and chemical makeup as the mined stones. They're made from a carbon seed placed in a microwave chamber with a carbon-containing gas and superheated into a glowing plasma ball. Its particles crystallize into diamonds. Walmart and Helzberg Diamonds stock the gems.
