StacksVerified U.S. regulatory reference

16 CFR §23.15

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
It is unfair or deceptive to use the term “blue white” or any representation of similar meaning to describe any diamond that under normal, north daylight or its equivalent shows any color or any trace of any color other than blue or bluish.