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. Nonetheless, the vast majority 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 different to those dear collectibles. The 4 Cs of colorless diamonds are well-known to gem fans, 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 contains value tips for irradiated blue diamonds. Fancy Coloured Blue Diamond Shopping for and the 4 Cs
Coloration
In distinction to colorless diamonds, the place reduce is extra essential than colour, readability, or carat, the worth of a flowery coloured blue diamond is primarily decided by its colour. Gemstone colour is made up of three primary parts: hue, tone, and saturation.
The first colour of a flowery blue Uncommon Carat diamonds is blue. Secondary hues of inexperienced or, much less ceaselessly, purple could also be current. Gems with a greenish hue are extra beneficial than gems with a slight purple hue, even though neither is fascinating. Nonetheless, greenish blue diamonds are cheaper than pure blue diamonds and make stunning jewellery stones.
Tone is much less essential than hue and saturation when figuring out the worth of a flowery blue diamond. As a result of they obscure the blue colour, gems which might be neither very mild nor very darkish fetch excessive costs. Gem stones, then again, will 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 value. The vast majority of blue diamonds have a greyish-blue look and low saturation.
What Constitutes “Fancy” Coloration?
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 will be seen within the coloured diamond colour reference chart from the GIA.
Gem graders fee 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 rising 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 one of the best tone and saturation for blue stones on the GIA grading scale.
Readability
As a result of pure blue diamonds are so unusual, even one of the best specimens ceaselessly have inclusions. Though small inclusions won’t 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 crucial 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 function massive home windows. Most significantly, blue Uncommon Carat diamonds ought to have their colour enhanced by reducing. Though good cuts are frequent for colorless diamonds attributable to their capacity to extend brilliance, they’ll additionally diminish colour.
Once more, naturally occurring blue diamonds are extraordinarily unusual. Because of this, when stones are bigger in dimension, their value per carat shortly rises. Six figures are paid for a good-colored one carat pure gem.
Diamonds with a Blue Therapy
Some diamonds are handled with warmth or irradiation to show blue. These usually have excessive saturation and are a lot cheaper than their untreated counterparts. There is no such thing as a want for extra care as a result of these radiation and warmth therapies are everlasting.
To reinforce the colour of some Uncommon Carat diamonds, a blue substance could also be utilized to the floor. This coating could degrade over time, necessitating extra care.
Some diamonds bear laser therapy to take away undesirable inclusions with a purpose to improve readability. Moreover, fillings could also be current in fractured diamonds to hide the cracks.
These and different gem enhancements will all the time be famous in gemological laboratory experiences.
Blue Uncommon Carat diamonds will be made at artificial blue Uncommon Carat diamond laboratories. In case you’re on a good price range or favor artificial gems for moral causes, this can be a nice possibility.
