Natural fancy coloured diamonds are very rare and expensive. Blue is one of the rarest and most desirable colours. The Hope diamond, which we have viewed in the Smithsonian Institution in Washington D.C., is the most famous blue diamond in the world, and the largest at 45.52 carats.
Quality for quality, fancy blue diamonds are more expensive than ordinary near-colourless ones. The processing adds to the costs, so it is generally only worth treating diamonds of high clarity. The diamonds selected for treatment usually start off a one of the less desirable colours such as brown or yellow. There is quite a variation between different shades and hues of blue. Although most of the blue diamonds we have seen have been intensely coloured, some colours are definitely more attractive than others. There is bound to be an element of personal preference when it comes to choosing your favorite color of blue diamond.
The length-to-width ratio of Heart Shape diamonds can vary. Fat hearts will have ratios in the 0.85 to 1 ratio while skinny hearts are will be greater than 1.10. The best ratio for you will depend on your personal preferences so do your shopping to determine what you like best.
This is always a good choice in a shape... they are very optically efficient because the angles of the facets can be consistently set all the way around the diamond. This diamond shape never goes out of fashion like some of the other diamond fancy shapes. "Well cut" Round Brilliant Cut diamonds, with a lot of light being returned back to your eyes can mask low Clarity and Color
Pear Shape Diamonds, This brilliant cut diamond is also called a teardrop for its single point and rounded end. The unique look of Pear Shape diamonds help make it a popular choice for a variety of diamond jewelry.
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