Color Grade Guide

Diamond colour scale from D (colourless) to M, explained. G to J is the sweet spot for engagement-ring buyers: looks colourless face-up without the top-grade price.

The jump from G to F is where the diamond market gets aggressive. A G color stone in the same carat and clarity will typically cost 8 to 15 percent less than an F color, even though almost no one can tell them apart once the stone is set in a ring. The premium from F to E is larger again, and E to D is the steepest step on the whole scale. If you care about the paper grade, factor in the three-grade premium of D over G; if you care about how the stone looks, stop at G or H.

Match your color target to your metal choice. In platinum or white gold, aim for G at minimum because any warmth is visible against the cold metal tone. In yellow or rose gold, you can go down to I or even J without the stone looking warm, because the metal hides minor body color. The individual grade pages below show you exactly how many listings are available at each color, and the typical natural versus lab-grown price per carat so you can budget sensibly.