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Similarly, natural diamonds usually have minor imperfections and flaws, such as inclusions of foreign material, that are not seen in synthetic diamonds. Screening devices based on diamond type detection can be used to make a distinction between diamonds that are certainly natural and diamonds that are potentially synthetic.
Lab-grown diamonds are generally considered more sustainable than their natural counterparts—especially considering the well-documented history of human rights abuses in the diamond mining industry.
Diamonds have high monetary value as one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light—giving the diamond its characteristic "fire"—make it useful for industrial applications and desirable as jewelry. Diamonds are such a ...
In diamonds, the cut is the primary determinant of value, followed by clarity and color. An ideally cut diamond will sparkle, to break down light into its constituent rainbow colors (dispersion), chop it up into bright little pieces (scintillation), and deliver it to the eye (brilliance).
“Natural diamonds are formed over billions of years, deep within the earth, through a process involving high pressure and temperature—usually in the presence of other minerals and gasses ...
In natural diamonds, there is typically little if any response to short-wave ultraviolet, but the reverse is true of synthetic diamonds. Some natural type IIb diamonds phosphoresce blue after exposure to short-wave ultraviolet. In natural diamonds, fluorescence under X-rays is generally bluish-white, yellowish or greenish. Some diamonds ...
Diamonds were first discovered in Sierra Leone in the 1930s by British colonialists, with significant mining efforts beginning in 1935. [21] Sierra Leonean diamonds are renowned for their high quality, and retained a high value on the market. [22] The colonial government granted exclusive mining rights to the Sierra Leone Selection Trust (SLST ...
Botswana's diamond industry is very important to its economy. [3] Since the discovery of diamonds in Botswana in the late 1960s in the Orapa diamond mine, [8] these precious gemstones have played a very important role in shaping the nation's economics. The industry is mainly managed by the government and De Beers in a company called Debswana. [5]