Archive for October, 2007

This is the world’s most expensive diamond pendant.  It is a single diamond that is over 75 carats and was designed by Stefano Canturi.

 

Rare, beautiful, a lifetime of exquisite quality; all these words describe the fabulous blue diamond. Many people believe that diamonds are only white, but in reality, diamonds are also yellow, green, black, pink and a gorgeous blue. The colored diamonds are referred to as the “fancy diamonds.” If you wear a blue diamond, it may be assumed among those who don’t know that you’re wearing a sapphire tourmaline, or aquamarine gem. Since pink sapphires can confuse the eye, blue diamonds can also.

Never judge a diamond by its color! When admiring another person’s gem, it isn’t safe to say, “What a beautiful sapphire” when you may actually be looking at a rare blue diamond. Among gem collectors, diamonds are highly prized for their variety of colors. Gemstones are not categorized by their color, but by their chemical composition. Thus, the carbon-based blue diamond has the same chemical make up as the white diamond.

Blue diamonds are very rare, like the pink diamond that sells for one million US dollars per carat. “Blues” are much less costly, but are still much more expensive that white diamonds. They are one of the most rare and valuable gemstones in the world. Their color is derived from a trace amount of boron in the stone.

As time passes, the blue diamond undergoes an astonishing color metamorphosis; it becomes a deeper blue that makes it much more valuable. The bluer the stone, the older it is. The blue diamond is the only gemstone in the world that alters its color as it ages. Your great-grandmother’s dark blue diamond is enormously valuable. Owners rarely sell these older stones because of their value; you may be very lucky to find a dark blue diamond at an estate sale.

Here is a great pictorial page of how diamonds are created from roungh in Africa through processing and end up in the jewelry store.

See the Pictures