Don't miss us at our upcoming trade shows & events
  • JCK Las Vegas 2024 - May 31, 2024
  • IJO Summer Show 2024 - Jul 14, 2024
  • RJO Summer Show 2024 - Aug 03, 2024
  • Centurion Jewelry Show: Sea Island 2024 - Aug 18, 2024
  • JCK Las Vegas 2024 - May 31, 2024
  • IJO Summer Show 2024 - Jul 14, 2024
  • RJO Summer Show 2024 - Aug 03, 2024
  • Centurion Jewelry Show: Sea Island 2024 - Aug 18, 2024

Our History

A Legacy in the Making

Decades of expertise paired with exceptional customer care.

RDI Diamonds

About Us

Our focus on diamonds began in 1992.

RDI Diamonds® was founded by CEO Michael Indelicato as Rochester Diamonds Incorporated, a small jewelry business that Mr. Indelicato ran from his mother’s basement in the late 1980s. 



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RDI Diamonds
RDI Diamonds

EST 1992

A Tradition of Care

The company was a true family business, with both Michael and his GIA Graduate Gemologist sister, Sara Lajuett, working to build a specialty brand that focused solely on quality diamonds and true customer appreciation and service. Shortened to the name RDI Diamonds® in the early ‘90s, the company steadily flourished into an international leader among wholesale diamond distributors, maintaining double-digit growth for over 30 years.



Thousands of retailers recognize and trust RDI Diamonds® for its commitment to quality, attention to detail, and customer service, tools, and support that go above and beyond expectations. RDI Diamonds® has built a legacy of quality, fairness, and honesty to become America’s premier diamond supplier, and an international leader in the diamond industry.

1987 – 1989

Laying the Bedrock

CEO Michael Indelicato began a business venture selling gold chains, jewelry, and gems, and founded Rochester Diamonds Incorporated out of his mother’s basement.


All in the Family

Sara Indelicato, Michael’s sister, joined the company as its resident trained Gemologist.


A Foundation of Excellence

The company found its stride. Rochester Diamonds Incorporated became RDI Diamonds®, and moved to downtown Rochester’s historic Sibley Building.


Sharper Focus

As their business grew, the company focus shifted to exclusively providing quality wholesale diamonds.

1994 – 2004

A Decade of Growth

RDI Diamonds® established itself as one of the leading diamond wholesalers in the nation, and cultivated an international reputation for professional, personalized customer care.


Lifetime Trade-Up

RDI Introduces our Lifetime Trade-up program, a first in the diamond wholesale industry.

2006 – 2013

Rising Gains

Recognized in Inc. 500 America’s Fastest-Growing Private Companies, RDI Diamonds® served more than 2,000 retailers nationwide.


A New Connection

RDI Diamonds ® launched the proprietary Mobile Diamond Connection®, ramping up and strengthening sales performances for its customers.


A Larger Location

Extensive trade shows, new technological advances, and a rapidly expanding team necessitated a move to a larger office space.



Our new office location in the Gem Tower in New York, New York.

2020 and Beyond

Dedicated to You

Quality, attention to detail, honesty, fairness, and on-time delivery. These are words that RDI Diamonds® lives by and that its customers can expect, now and in the years to come.

RDI Diamonds Icon


"I didn't come from money. My parents were immigrants. I was taught hard work. When I was 16, in addition to his manufacturing job, my dad started selling gold chains. One year later, he was diagnosed with cancer and died fairly quickly. I began selling off the remainder of his gold to help my mother and sister and found my passion."

- CEO Michael Indelicato


Join Our Journey