Yellow Diamond Colour Grades
Fluorescence is a wildcard in yellow diamonds of any intensity.
Yellow diamond colour grades. Diamond color matters but only to a certain point. These are either yellow or brown diamonds that have more color than a z master stone or they exhibit a color other than yellow or brown. The diamonds with the least color get a grade of d while stones with more yellow or brown color receive grades further down the alphabet. The ftc provides no guidelines for the use of the term fancy color in the us but there is general agreement in the international trade about what diamond color range is customary for fancy color diamonds.
Yellow is diamond s second most common fancy color. Just have a look at the diamond rings below. Cutters and dealers never consider a color or grade to be valid unless it was issued by gia. The one on the left is set on a pavé ring setting and the one on the right is set on a three stone ring.
When buying a diamond does the color grade matter. Same goes for grading yellow diamonds. The way we approach the 4cs we separate cut and carat weight from color and clarity. The hue of a yellow diamonds can have different color appearances depending on its tone and saturation as seen in this chart which shows diamonds in the warmer hue range.
Yellow diamonds are sometimes marketed as canary while this isn t a proper grading term it s commonly used in the trade to describe fancy yellow diamonds. Gia is considered the only acceptable lab report for yellow diamonds. Yellow diamonds are less common than the colorless to light yellow diamonds associated with the d to z color grading scale but far more common than blue pink and red diamonds. Colorless diamonds are definitely scarce and rank much higher on the color grading scale than a diamond that has even the softest touch of yellow.
Yellow gold makes slight amounts of yellow in a diamond less obvious while white gold or platinum mountings make the color in yellow diamonds more apparent. The vast majority of untrained observers and many gemologists cannot distinguish a color grade from the one just above or below unless the diamonds are compared side by side in a. And the difference between an h color and a k color is three color grades. What is known as the normal color range diamonds of more intense color usually yellow but in some cases red green or blue are termed fancy color diamonds black diamonds are also fancy color diamonds.
How does fluorescence affect yellow diamonds. The majority of mined diamonds fall between white and pale yellow or brown. Consumers should follow this rule as well. All other factors being equal the most valuable diamonds are those with the least color appearing white to the eye.
A k colored diamond on a yellow gold ring will always look good on yellow gold. They both contain k colored diamonds. When a diamond has enough yellow or brown or if it has any other tint at all it s graded as a fancy color diamond.