Diamond Color is a measurement of a diamond’s lack of color because the majority of diamonds are most desirable when they are white. The color scale for diamonds goes from D to Z, where D is the highest possible grade in color (most white) and where Z is the lowest grade (least white).
In most cases, a diamond with apparent color will show as a pale yellow or light brown hue. Despite this, color is considered by many to be the next most important quality after the cut. In some cases, this color can add warmth to a stone with a perfect stone and make it even more attractive as it sparkles for your eyes.
D – The highest color grade with no apparent color.
E & F – E / F grade diamonds are generally considered colorless with only the smallest amounts of color able to be seen by a gemologist.
G & H – G / H grade diamonds are nearly colorless to the naked eye and are difficult to determine without setting them side by side with lower grade & higher graded stones.
I & J – I / J graded stones are nearly colorless and oftentimes represent great value because of the way their color can come out as a warmth mentioned
K through Z – Diamonds graded below K are not generally carried at de Boulle Diamond & Jewelry.