US guides
F is still colorless. G is the first near-colorless grade.
The face-up difference is subtle under 1.5 carats and easier to see as the stone gets larger. Your photos at the carat you are buying beat a generic US rule.
Natural diamonds charge more for F than G. Lab-grown diamonds charge less of a premium, so F is easier to keep.
Compare two listings with clarity and cut held constant. Carat Mate ships the certified loose diamond and its lab report to United States addresses. Prices on the site are in USD. Wrong-item returns may be considered within 3 days of delivery, subject to review.
