Diamonds have been treasured as gemstones since the ancient times.[citation needed] Popularity of diamonds has risen since the 19th century because of successful advertising in spite of an outrageously increased supply. Diamonds are not normally used as a mainline store of value during times of crisis, due to their lack of fungibility and low liquidity.[citation needed] However, they may still be useful during times of hyperinflation.[citation needed]
Approximately 20% of mined diamonds are used in jewelry and 80% for industrial uses (such as lasers, drill parts and surgical equipment).[citation needed]
Chemical vapor deposition is now used to produce cultured diamonds which, unlike diamond simulants, require very close inspection to distinguish them from natural diamonds.[citation needed]
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