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Tiffany & Co The Guide To Diamonds

The Guide to Diamonds

Standards of Tiffany Brilliance


Tiffany diamonds are brighter and more vibrant because we craft them that way. The combination of Tiffany’s exacting standards for cut and unparalleled craftsmanship produces the most beautiful diamonds in the world. And only the most expertly cut diamonds earn the right to be placed in the legendary Tiffany Blue Box®.


Color refers to the natural tint inherent in white diamonds. In nature, most white diamonds have a slight tint of yellow or brown color. 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 diamonds in the “colorless” and “near colorless” range on a diamond color scale. Borderline diamond color classifications are automatically given the more conservative grade. Additionally, the Tiffany Gemological Laboratory will not accept stones exhibiting strong or excessive fluorescence, which, in natural lighting, can give diamonds a milky appearance.


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

Tiffany & Co Diamond Color
Tiffany & Co. Engagement Ring Styles & Setting

Engagement Ring Styles and Settings

Modern or vintage-inspired setting? Diamond or simple platinum band? Round, princess or cushion cut? Our Tiffany Diamond Experts will help you narrow down your options from diamond shape to ring setting.

Responsibly Sourced

We believe fine craftsmanship starts with a respect for our natural world, responsibly sourcing high-quality raw materials and continues through to the creation of the final piece of jewelry. From the moment they’re unearthed, Tiffany diamonds selected for our engagement rings never leave the hands of highly skilled artisans, who work with passion and precision to unleash intense vibrancy and light. Once a rough diamond is deemed worthy of the Tiffany name, it is delivered to our diamond cutting experts and our master craftspeople. Tiffany is proud to employ more than 1,500 expert cutters and polishers in our own state-of-the-art workshops ensure. Our sourcing practices honor the places and people that provide us with such astonishing beauty.  We go above and beyond the Kimberley Process—with our own chain of custody controls and by advocating for stronger global standards—to ensure that human rights and the environment are protected.

Tiffany & Co. Diamond Source Initiative