Canary Diamonds

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GIA Grading Report

The Gemological Institute of America created a scale that differentiates between tone, hue and saturation of color in a diamond. They have the most advanced laboratory for accurate reporting. You should only buy a natural colored diamond that has a grading report. To learn more about this system's terminology click here. All diamonds are graded using the Gemological Institute of America (GIA) grading systems and all are evaluated based on the famous "4 C's" - Color, Clarity, Cut and Carat weight.

GIA Color Grading

Many of you are familar with the GIA's scale for color grading "White" Diamonds which starts at "D" color and goes through "Z" color. The diamonds graded on this scale are not "White" at all. They start out at "D" color which is colorless and they get more yellow color as they move down the scale to "Z" color which is light yellow. When a diamond has more yellow color saturation "face up" than a "Z" color has when viewed through the side, it is said to be a "fancy" colored diamond.

Shades of Yellow

Fancy colored diamonds starting after "Z" are Fancy Light Yellow, Fancy Yellow, Fancy Intense Yellow and finally the most saturated is Fancy Vivid Yellow. Any of these yellow fancy color grades are given the slang label "Canary Diamond". Note the transition from grading D-Z colors through the side (table down), to grading yellow fancy colors through the top (face up). Canary Diamonds recommends only buying colored diamonds with GIA diamond grading reports.

Mounting Yellow Stones

Generally, people that buy yellow diamonds would like their diamond to look as yellow as possible. The goal is most often to make Fancy Light Yellow or Fancy Yellow Diamonds look like they are Fancy Intense Yellow or Fancy Vivid Yellow. This can be accomplished by skillful mounting. By surrounding the sides and bottom of a yellow diamond with high karat yellow gold, the face up yellow color will apear more yellow. The sides and shanks of the mounting are often 18 karat white gold or platinum and usually set with the whitest (colorless) side diamonds. These white side diamonds, in white metal, provide the striking contrast to make the Canary Diamond look as vivid as possible. You can look at some good examples on our portfolio page.

Beware of Deception

If considering purchasing a yellow diamond there are three critically important things we believe you must have.
1. The Diamond must have a GIA Report
2. The Diamond must have a GIA Report
3. The Diamond must have a GIA Report
Why?
- Man can mount diamonds to make them look more yellow.
- Man can make synthetic yellow diamonds. These lab grown or lab created diamonds have never been in the ground.
- Man can treat natural (from the ground) diamonds to give them their canary yellow color. Man can make them yellow by irradiating them, by treating them under high pressure high temperature (HPHT) or man can coat them.

Factors Affecting Price

Canary Diamonds are those classified as Fancy Light Yellow, Fancy Yellow, Fancy Intense Yellow and Fancy Vivid Yellow. Obviously the value of Canary Diamonds are also affected by the other 3 C's besides color. Clearly clarity, cut and carat weight are important factors. The lower the clarity the poorer the cut, and the smaller the diamond, the lower the value. There are many more subtle factors that could impact a Canary Diamond's value.For example blue fluorescence can make a yellow diamond look less yellow when viewed under a long wave ultra violet light which is found in normal daylight. Therefore blue fluorescence is a negative. Tones are another factor as darker tones are generally less valuable than their lighter toned counterparts.