Gunderson’s Jewelers, with two locations in Sioux City and Sioux Falls, S.D., aims to honor a breast cancer survivor or loved one with a pink diamond butterfly pendant. Nominations—including contact information and brief explanations of why a person should receive the piece—will be accepted through the month of October; a winner will be announced in early November. Log onto the jeweler’s website to submit a nomination or for more details.

JCK