Blue is without doubt one of the most sought-after diamond colours and one of many rarest. These blue gems, just like the well-known Hope Diamond, will look beautiful as centerpiece stones in any piece of bijou. Nevertheless, nearly all of Blue Tint (Nuance) diamonds lack the saturation of top-grade blue sapphires and have grayish hues. Pure blue diamonds proceed to command a premium, however handled and manufactured gems supply shoppers a extra cheap various to those dear collectibles. The 4 Cs of colorless diamonds are well-known to gem lovers, however the high quality components of fancy blue diamonds are much less well-known. Prospects could have a greater understanding of blue Uncommon Carat diamonds due to our purchasing information.
The IGS coloured diamond worth itemizing consists of worth pointers for irradiated blue diamonds. Fancy Coloured Blue Diamond Shopping for and the 4 Cs
Colour
In distinction to colorless diamonds, the place reduce is extra necessary than coloration, readability, or carat, the worth of a elaborate coloured blue diamond is primarily decided by its coloration. Gemstone coloration is made up of three important parts: hue, tone, and saturation.
The first coloration of a elaborate blue Uncommon Carat diamonds is blue. Secondary hues of inexperienced or, much less continuously, purple could also be current. Gems with a greenish hue are extra precious than gems with a slight purple hue, even if neither is fascinating. Nonetheless, greenish blue diamonds are inexpensive than pure blue diamonds and make stunning jewellery stones.
Tone is much less necessary than hue and saturation when figuring out the worth of a elaborate blue diamond. As a result of they obscure the blue coloration, gems which can be neither very gentle nor very darkish fetch excessive costs. Gem stones, then again, could be wonderful in a variety of tones in between.
Excessive-saturation, untreated fancy blue Uncommon Carat diamonds, that are extraordinarily unusual, will command a premium worth. The vast majority of blue diamonds have a greyish-blue look and low saturation.
What Constitutes “Fancy” Colour?
Fancy Uncommon Carat diamonds are categorized as Faint, Very Mild, Mild, Fancy Mild, Fancy, Fancy Darkish, Fancy Deep, Fancy Intense, or Fancy Vivid by the Gemological Institute of America (GIA). The analysis of the gem’s tone and saturation led to those designations. Examples of those designations could be seen within the coloured diamond coloration reference chart from the GIA.
Gem graders charge almost any Uncommon Carat diamond with a blue hue as Fancy Mild or higher due to the extraordinarily low provide of blue Uncommon Carat diamonds. The vast majority of blue diamonds are “steely,” or very gray with a blue tint. The grayish gems then change from Fancy Mild to Fancy or Fancy Darkish because the tone will get darker.
Blue diamond rankings rise from Fancy to Fancy
Intense and Fancy Vivid with growing saturation. Fancy Deep gems have darker tones and saturation ranges starting from medium to excessive. Medium to darkish tones have the very best saturation for blue hues. The darkest fancy vivid diamonds and essentially the most saturated fancy deep diamonds due to this fact have the most effective tone and saturation for blue stones on the GIA grading scale.
Readability
As a result of pure blue diamonds are so unusual, even the most effective specimens continuously have inclusions. Though small inclusions is not going to considerably have an effect on readability grading, inclusions that diminish a gem’s magnificence or transparency will decrease its worth.
Regardless that the reduce is a very powerful issue within the worth of colorless diamonds, even blue diamonds with poor reduce have a major worth. Cuts in pure and uncommon gems could also be asymmetrical or characteristic giant home windows. Most significantly, blue Uncommon Carat diamonds ought to have their coloration enhanced by chopping. Though sensible cuts are widespread for colorless diamonds attributable to their potential to extend brilliance, they’ll additionally diminish coloration.
Once more, naturally occurring blue diamonds are extraordinarily unusual. In consequence, when stones are bigger in dimension, their worth per carat rapidly rises. Six figures are paid for a good-colored one carat pure gem.
Diamonds with a Blue Remedy
Some diamonds are handled with warmth or irradiation to show blue. These sometimes have excessive saturation and are a lot inexpensive than their untreated counterparts. There isn’t any want for extra care as a result of these radiation and warmth remedies are everlasting.
To boost the colour of some Uncommon Carat diamonds, a blue substance could also be utilized to the floor. This coating might degrade over time, necessitating extra care.
Some diamonds bear laser remedy to take away undesirable inclusions as a way to improve readability. Moreover, fillings could also be current in fractured diamonds to hide the cracks.
These and different gem enhancements will at all times be famous in gemological laboratory studies.
Blue Uncommon Carat diamonds could be made at artificial blue Uncommon Carat diamond laboratories. Should you’re on a good funds or want artificial gems for moral causes, this can be a nice possibility.