Gray Diamonds, from history to sales

Gray color diamonds

Pure gray diamonds are rare. Their importance and value have only recently increased in the market. For example, in November 2011, a 10.67 carat carat estimated at $120,000-$200,000 sold for a record-breaking $1.19 million. That equates to a price per carat of over $100,000. In general, gray diamonds usually have shades ranging from dark steel gray to light silver gray. Terms such as charcoal gray, steel gray, dove gray, silver or slate are often used to describe the diamonds . Gray diamonds are the only diamonds other than blue diamonds that are semiconductors for electricity.

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Gray color diamonds

Formation of gray diamonds and their intensity

Gray fancy diamonds get their color from boron or hydrogen atoms embedded in the diamond's carbon lattice. However, boron atoms are significantly less common in gray diamonds than hydrogen atoms. During the formation process in the earth's interior under high pressure, the non-carbon atoms penetrate into the material. Gray diamonds come in a wide variety of shades and overtones. Gray as a primary color can have a light or strong intensity.

Overtones in gray diamonds

Gray diamonds often have green , brown or blue attributes. The overtone changes the color of a gray diamond. They appear warmer with a brown overtone and cooler with a blue overtone. Gray is a very common overtone in other colored diamonds. A gray overtone is particularly common in blue and green diamonds.

More colors of diamonds

Diamonds come in many more colors than brown, some other colors include the following:

Gray diamond locations

Gray fancies come from Russia, India, South Africa, Brazil and Australia. A particularly important location for gray diamonds is the Argyle mine in Australia, which is best known for its red and pink diamonds. The gray diamonds created there often have a violet overtone.

Famous gray color diamonds

The Sultan of Morocco

Pure gray diamonds are rare. Their importance and value have only recently increased in the market. For example, in November 2011, a 10.67 carat carat estimated at $120,000-$200,000 sold for a record-breaking $1.19 million. That equates to a price per carat of over $100,000. In general, gray diamonds usually have shades ranging from dark steel gray to light silver gray. Terms such as charcoal gray, steel gray, dove gray, silver or slate are often used to describe the diamonds. Gray diamonds are the only diamonds other than blue diamonds that are semiconductors for electricity.

The Sultan of Morocco
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