Rose Diamond other factor that must be stated is that a Karat (no longer Carat) refers to the quantity of gold in a specific object. Conversely, a Carat is a unit of weight for gemstones wherein one carat equals 1/five of a gram, or two hundred milligrams. It manner consequently that a one carat sapphire might be smaller than a one carat diamond due to the fact sapphire is denser and as a result heavier in weight for its size. 

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