Sort IIa diamonds are essentially the most valued and collectable treasured gems, as they include both little or no or no nitrogen atoms of their crystal construction. Boart diamonds are stones of low high quality which can be utilized in powder kind as an abrasive.
The prolific Letšeng mine is without doubt one of the world’s ten largest diamond operations by income. At 3,100 metres (10,000 ft) above sea stage, it’s also one of many world’s most elevated diamond mines.
The Letšeng mine is legendary for the manufacturing of huge, distinctive white high quality diamonds, making it the very best greenback per carat kimberlite mine on the planet, Gem stated.