de Grisogono?s purest and largest diamonds ever mined

The word "carat", when referring to the weight of a diamond, comes from the Greek word keration, or carob bean, a unit that has been used to measure precious stones since the 16th century.One carat equals one bean, roughly, and while many an aspiring bride today knows exactly what a one-carat diamond might look like on her finger, few of ...

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