GIA 0.50CT NATURAL ROUND DIAMOND COLLECTIONDiamond forms under high temperature and pressure conditions that exist only about 100 miles beneath the earths surface. Diamonds carbon atoms are bonded in essentially the same way in all directions. Another mineral, graphite, also contains only carbon, but its formation process and crystal structure are very different. Graphite is so soft that you can write with it, while diamond is so hard that you can only scratch it with another diamond. 1

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but in actuality it can be a valuable gem

Zircon gemstones containing radioactive element traces undergo a process called metamiction

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IGC Natural Good Quality Emerald Of Zambia Origin it is selected gem beautiful stone IGCZZM74

IGC Natural Good Quality Emerald Of Zambia Origin it is selected gem beautiful stone IGCZZM24

IGC Natural Good Quality Emerald Of Zambia Origin it is selected gem beautiful stone IGCZZM21

IGC Natural Good Quality Emerald Of Zambia Origin it is selected gem beautiful stone IGCZZM68

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who was the first to identify it as a unique variety of spodumene

IGC Natural Good Quality Emerald Of Zambia Origin it is selected gem beautiful stone IGCZZM39