About Us and Our History

About Us and Our History

Iridium Jewelers & Gemologist started as a jewelry-making store over 45 years back. This has made us more knowledgeable than most jewelers and appraisers not just in Honolulu, but in entire Hawaii.

About Owner

Karl Nakamura, our owner, began his career at JMN Jewelers in 1975, where he learned the basics of jewelry repair and manufacturing. After receiving credentials as a graduate gemologist, he expanded services to include a diamond brokerage, gem appraisals and custom jewelry design. Karl's services have been utilized by private corporations and individuals as well as insurance companies, government agencies, and law firms.

He is a certified senior member of the National Association Of Jewelry Appraisers and an accredited senior gemologist of the Accredited Gemologists Association and has completed the Advanced Personal Property Appraisal Course (APPA) administered by the American Gem Society. Karl has been certified to serve as an expert witness in the state of Hawaii for the first circuit, district and family court.

How It All Began

In 1973, Jerry M. Nakamura, the then head jeweler for over 20 years of the Security Diamond Company, previously Hawaii's most prestigious jewelry store, left his position, opened a small shop in downtown Honolulu, which specialized in custom design, diamond setting and repair work for other jewelers and expanded the art of jewelry making further.

Known for quality workmanship, Jerry M. Nakamura & Sons became popular for offering the best work possible at a fair price. This is the benchmark of Jerry M. Nakamura & Sons, or Iridium Jewelers and Gemologist, as it is known now. It is led by, Karl Nakamura, Jerry’s son, who is a graduate gemologist and seasoned professional of this industry.

Iridium Jewelers & Gemologist

New Name – Same Quality

While the name is new, the company's main philosophy is still deeply rooted in offering excellent customer service and the best value possible. The tradition of jewelry designers and goldsmiths goes back over a half century in the islands in our family.

Since the beginning, we have been committed to providing only the highest quality products and services to our customers. Since 1976, as one of the only full-service jewelers in Hawaii, we started to offer repair, appraisal, and custom design services and sale of fine diamonds, gemstones and jewelry.

Our custom designs have won multiple awards.

Iridium Jewelers & Gemologist

Iridium’s Promise and Commitment

Iridium has always strived to stay updated with the latest technology methods and trends in the business to assist you with all your jewelry needs. The lab is equipped with some of the most advanced gemological equipment in the state and we are the only store in Hawaii staffed with an accredited gemologist and certified appraiser.

We are a long-standing member of Jewelers of America and an accredited member of the Better Business Bureau of Hawaii organizations and is committed to the adhering to honest and ethical business practices.

The combined experience of our staff is well over 50 years, and each of us is committed to adding value to your jewelry in every way possible.

Iridium jewelers are known for "while you wait" appraisal service.

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