The value of a diamond varies according to its colour. Perfectly colourless diamonds are the most expensive and rare.
While many diamonds appear colourless or transparent they actually have subtle yellow or brown tones that can be detected when comparing them side by side.
Diamonds were formed under intense heat and high pressure in the earth's upper mantle. There are traces of other elements that have been incorporated into their atomic structure accounting for the variances in colour.
Diamond colour grades start at D and continue through the alphabet. Truly colourless stones (grade D) are extremely rare and very valuable. Grade E and F also are colourless but the subtle changes in colours are so minute, that it is difficult to identify them from the naked eye. The colours are paired into groups. D, E, F grades are said to be colourless while coulours G, H, I are said to be near colourless. A slight yellow teint is usally not visible when mounted on yellow gold.
Although the presence of colour makes a diamond less rare and valuable, some diamonds come out of the ground in vivid colours such as well defined reds, blues, pinks, greens, and bright yellows. These are highly prized and extremely rare. At your (special) request, we are able to offer you fancy colour diamonds.