Diamond Clarity Scale Tiffany Diamond Experts 800 518 5555

As this chart demonstrates, diamond clarity ratings range from FL (flawless) to I3 (heavily included).

Gem-grade diamonds are given a clarity rating based on a scale that is standard in the trade. However, when Tiffany believes that a diamond’s clarity is on the borderline between two grades, Tiffany will always give the stone the lower grade.

fl
flawless

if
internally flawless-minor surface blemishes

vvs1-vvs2
very, very slightly included

vs1-vs2
very slightly included

si1
slightly included
si2
slightly included

i1-i3
imperfect-eye-visible inclusions


Tiffany gemological standards refer only to round brilliant diamonds from .18 to 2.99 carats set in certain ring styles. Round brilliant diamonds smaller or larger, fancy shape diamonds and fancy color diamonds each have their own specially tailored standards of evaluation. Consult your Tiffany Sales Professional for details.