A fancy yellow diamond, often simply referred to as a yellow diamond, is a type of diamond that displays a yellow hue. This coloration can range from very faint yellow to intense vivid yellow, with variations such as lemon yellow, canary yellow, and golden yellow.
Yellow diamonds get their color from the presence of nitrogen atoms within the crystal structure of the diamond. The intensity of the yellow coloration depends on the concentration and arrangement of these nitrogen atoms. In some cases, additional elements or structural irregularities may also contribute to the color.
Fancy yellow diamonds are graded on a scale that considers the intensity of the yellow color, ranging from light yellow to fancy intense yellow to fancy vivid yellow, with fancy vivid yellow being the most saturated and desirable. These diamonds can be found in various shapes and sizes and are often used in jewelry, particularly in engagement rings and other statement pieces.
Yellow diamonds are prized for their unique and vibrant color, and they can command high prices, especially for stones with intense or vivid hues. They are also sometimes treated to enhance their color or clarity, although natural untreated yellow diamonds are generally more valuable.
A 2 carat lab-created diamond as shown above, also known as a synthetic diamond or cultured diamond, is a diamond that is created in a controlled laboratory environment rather than formed naturally in the Earth's crust over millions of years. These diamonds have essentially the same chemical composition, crystal structure, optical, and physical properties as natural diamonds. Lab-created diamonds are produced through two main methods: High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD).