Cut

The most important of the 4Cs, cut refers to how a diamond’s facets interact with light. It is determined by symmetry, polish and precision of cut. All Tiffany engagement diamonds are cut to our exacting standards

Tiffany diamonds reflect light for maximum brightness, split light to display the full spectrum of color and refract light to bring the stone to life.

Learn more about cut

Carat Weight

Carat denotes the weight of a diamond, not the size.

Tiffany measures diamonds to 1/1000th of a carat; one carat equals .20 grams. Tiffany diamonds are always cut to maximize beauty, not carat weight.

For larger carat weights, please contact a Tiffany Diamond Expert.

Learn more about carat weight

Color

Color refers to the natural tint inherent in white diamonds. In nature, most white diamonds have a slight tint of yellow or brown. The closer to being “colorless” a diamond is, the rarer it is. The industry standard for grading color is to evaluate each stone against a master set and assign a letter grade from “D” (colorless) to “Z” (light yellow).

Tiffany only accepts engagement diamonds in the “colorless” and “near colorless” range on the diamond color scale.

Yellow diamonds are extremely rare and graded on an established fancy yellow color scale. We offer a select range of vibrant fancy yellow color grades, including Fancy Yellow (FY), Fancy Intense Yellow (FIY) and Fancy Vivid Yellow (FVY).

The gemological standards in this section refer only to individually registered engagement diamonds set in certain ring styles.

Learn more about color

Clarity

Clarity is a measure of the purity and rarity of the stone, graded by the visibility of these characteristics under 10-power magnification. A stone is graded as flawless if, under 10-power magnification, no inclusions (internal flaws) and no blemishes (external imperfections) are visible.

Tiffany rejects any diamond with noticeable imperfections to the unaided eye.

The gemological standards in this section refer only to individually registered engagement diamonds set in certain ring styles.

Learn more about clarity