Na Hoku Company Facts National Jeweler Magazine, a prominent jewelry industry periodical, ranks Na Hoku the 10th largest fine jewelry retailer in the United States (ranked by units). Hawaii Business Magazine, a prominent business periodical in the State of Hawaii, where the Na Hoku corporate office and manufacturing facility is based ranks Na Hoku the 96th largest company in the State of Hawaii (ranked by revenue). The company is the oldest and largest jewelry manufacturer in the State of Hawaii. "Na Hoku – Hawaii's Finest Jewelers Since 1924" is a Registered Trademark and Registered Service Mark of Na Hoku, Inc. a Hawaii "C" corporation.