The famous 4 Cs ...
By Antonio Pasini
The famous 4Cs of diamonds The diamond, if properly cut, is a stone of exceptional beauty and brilliance whose main characteristic is the sparkle determined by the combination of 4...
Diamonds - Discover what they are and how they are classified
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The diamond, a rare gem...
By Antonio Pasini
The diamond, a rare gem... Diamond is one of the rarest gems in nature...
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