Canary yellow diamonds are among the world's most coveted and valuable diamonds. Their vibrant, sunny hue and undeniable sparkle make them a favourite among collectors, investors, and jewellery enthusiasts.

But what exactly makes canary yellow diamonds so special? What should you look for when buying one, and how can you be sure you're getting a good deal? 

This guide will answer all those questions and more. We'll delve into the history and science of canary yellow diamonds, explore their various grades and characteristics, and provide tips for buying and caring for your precious gemstone.

The History And Science Of Canary Yellow Diamonds

Buy A Canary Yellow Diamond

Canary yellow diamonds have a fascinating history that dates back hundreds of years. These diamonds are named after the canary bird because of their bright, sunny yellow colour, which is often compared to the bird's feathers. 

The first recorded discovery of a canary yellow diamond was in 1867 in the Kimberley mines in South Africa. 

The diamond was a massive 83-carat rough stone and was quickly purchased by a wealthy European collector. Since then, canary yellow diamonds have become increasingly popular and are highly sought after by collectors and jewellery enthusiasts alike.

To understand why science of canary yellow diamonds are so highly valued, it's important to understand the diamond grading system. Diamonds are graded based on four main characteristics: cut, carat weight, clarity, and colour. The Gemological Institute of America (GIA) developed a grading system that is used worldwide, and it is the most trusted and widely recognised system for diamond grading.

Regarding colour grading, diamonds are categorised on a scale from D (colourless) to Z (light yellow). However, diamonds with a yellow hue stronger than a Z are considered fancy-coloured diamonds, including canary yellow diamonds. These diamonds are graded on a separate colour scale that evaluates the depth and intensity of their colour.

The unique colour of canary yellow diamonds is due to the presence of nitrogen molecules within the crystal lattice structure of the diamond. 

The nitrogen molecules absorb blue light and reflect yellow light, resulting in the warm, sunny hue characteristic of these diamonds. The intensity of the colour depends on the number and arrangement of nitrogen molecules within the diamond, as well as the presence of other trace elements.

Grades And Characteristics Of Canary Yellow Diamonds

Canary Yellow Diamonds

Canary yellow diamonds are graded based on the same criteria as other diamonds, known as the Four Cs: Cut, Carat, Clarity, and Color. Each of these factors plays an important role in determining the overall quality and value of the diamond.


The cut of a diamond refers to its proportions, symmetry, and polish. A well-cut canary yellow diamond will have optimal light reflection, sparkle, and brilliance. It is important to note that the cut of a diamond does not refer to its shape but rather the quality of the cutting.


The carat weight of a canary yellow diamond is an important factor in determining its value. One carat is equivalent to 0.2 grams, and canary yellow diamonds are available in a wide range of carat weights, from less than one carat to several.


The clarity of a canary yellow diamond refers to blemishes and inclusions within the stone. Blemishes are surface imperfections, while inclusions are internal imperfections. 

A diamond with fewer blemishes and inclusions is considered to have higher clarity and is, therefore, more valuable.


As previously mentioned, canary yellow diamonds are graded on a separate colour scale, which evaluates the depth and intensity of their colour. 

This colour scale ranges from Fancy Light Yellow to Fancy Vivid Yellow, with the latter being the most valuable and highly prized. The intensity of the colour can also affect the value of the diamond.

Other Considerations

In addition to the Four Cs, canary yellow diamonds are graded based on their shade or tone of yellow. The shades range from light to dark, and the tone refers to how light or dark the shade appears. Lighter shades of yellow are often more affordable, while darker shades are more valuable due to their rarity.

How To Buy A Canary Yellow Diamond

When purchasing a canary yellow diamond, there are several factors to consider. Here are the top 5 factors to keep in mind when buying a canary yellow diamond:

  1. Colour: The depth and intensity of the colour can significantly impact the value and price of the diamond. The most highly valued canary yellow diamonds are those with a deep and vivid yellow colour.
  2. Clarity: The clarity of the diamond is also an important factor to consider. The fewer inclusions and blemishes a diamond has, the higher the clarity grade and the more valuable it is. However, remember that some inclusions can be hidden by the diamond's setting and may not affect the diamond's beauty.
  3. Cut: The cut of the diamond is essential for its overall beauty and brilliance. A well-cut diamond will have optimal light reflection and sparkle. It's important to note that the cut of a diamond does not refer to its shape but rather the quality of the cutting.
  4. Carat Weight: The carat weight of the diamond is another important factor to consider. Canary yellow diamonds come in a wide range of carat weights, and the price will increase significantly as the carat weight goes up.
  5. Certification: It's essential to purchase a canary yellow diamond from a reputable jeweller who can provide a certification from a well-known and respected diamond grading laboratory such as the Gemological Institute of America (GIA) or the American Gem Society (AGS). These certifications provide information on the diamond's quality and authenticity.


Canary yellow diamonds are among the world's most desirable and valuable gemstones, thanks to their unique and vibrant colour. When purchasing a canary yellow diamond, it's important to consider its colour, clarity, cut, carat weight, and certification. Each factor is essential in determining the diamond's overall quality and value.

By understanding the history, science, grades, and characteristics of canary yellow diamonds, as well as the factors to consider when purchasing one, you can make an informed decision and select a high-quality diamond that meets your needs and budget. 

Whether you're looking for a canary yellow diamond for an engagement ring, a special occasion, or simply to add to your collection, the beauty and rarity of these gemstones make them a timeless and valuable investment.


Are there any famous canary yellow diamonds?

There are several famous canary yellow diamonds, including the Tiffany Yellow Diamond, the Incomparable Diamond, and the Allnatt Diamond. These diamonds are renowned for their exceptional size, colour, and clarity and have been showcased in museums and exhibitions worldwide.

Can I use a canary yellow diamond as an engagement ring?

For sure! Canary yellow diamonds are a popular choice for engagement rings due to their unique and vibrant colour. They symbolise love, joy, and happiness, making them ideal for special occasions such as engagements.

Are canary yellow diamonds more valuable than white diamonds?

The value of a diamond is determined by several factors, including its colour, clarity, cut, and carat weight. White diamonds are generally more popular and commonly found than canary yellow diamonds, making them more expensive. 

However, canary yellow diamonds can be just as valuable, or even more valuable than white diamonds, depending on their colour intensity, clarity, and rarity. It's important to consider all of these factors when determining the value of a canary yellow diamond.