Crime

Michigan Jeweler, Auctioneer Charged with Wire Fraud

CrimeNov 18, 2019

Michigan Jeweler, Auctioneer Charged with Wire Fraud

Federal investigators allege Detroit-area jeweler Joseph DuMouchelle faked the purchase and sale of a $16.5 million diamond.

Detroit—A prominent Detroit-area jewelry buyer and auctioneer has been charged with wire fraud involving millions of dollars.

A criminal complaint was filed Nov. 8 in the U.S. District Court for the Eastern District of Michigan against Joseph DuMouchelle, the 58-year-old owner of Joseph DuMouchelle Fine & Estate Jewelry Buyers, Sellers, Appraisers and Auctioneers in Birmingham, Michigan.

DuMouchelle is a fourth-generation member of the jewelry industry, according to his website, studying at GIA before working for the family business for a decade and then branching out on his own.

The criminal complaint outlines two situations involving the sale of high-priced items in which DuMouchelle was involved.

The first involves business with a distant family member.

According to court documents, DuMouchelle started doing business with Thomas Ritter, who is related to the brother-in-law of DuMouchelle’s wife, Melinda Adducci.

Ritter would give DuMouchelle money to purchase pieces of jewelry, and they would split the profits once the piece was sold.

The complaint states that by December 2018, the latter owed Ritter about $430,000.

In January, Ritter contacted DuMouchelle to collect but instead of paying, the jeweler presented him with an opportunity to make more money: buy and resell “The Yellow Rose Diamond,” a 77.12-carat, VS2 natural fancy vivid yellow diamond.

According to the complaint, DuMochelle told Ritter they could buy the stone for $12 million and sell it for $16 million.

Ritter agreed; he was to receive 75 percent of the profit, while DuMouchelle would get the remaining 25 percent. Ritter also indicated he wanted to wire transfer the $12 million directly to the seller of the Yellow Rose.

DuMouchelle approached Richard Drucker of Gemworld International to prepare a report on The Yellow Rose Diamond, which Drucker did.

What Drucker didn’t know, however, is that DuMouchelle was characterizing him to Ritter as a representative of the diamond’s seller.

According to court documents, DuMouchelle forwarded two different emails to Ritter that looked like they came from Drucker and contained wire instructions to bank accounts later discovered to belong to DuMouchelle and his wife.

An FBI investigator found by using the IP address that the emails had originated from the Detroit area and not Glenview, Illinois, where Drucker is based.

Court documents acknowledge that Drucker did not have any involvement in a transaction involving the yellow diamond, nor did he know who the buyer and seller were.

Drucker told investigators that he doesn’t normally do reports on

individual stones but agreed to put together something on the Yellow Rose Diamond and email it to DuMouchelle as a favor, as the two have known each other for decades.

In a statement to National Jeweler, he said: “I am aware of the complaint filed against Joseph DuMouchelle. The report I prepared at Mr. DuMouchelle’s request contained general information. It clearly stated I do not buy or sell jewelry and disclosed that I had not personally examined this stone. That was the full extent of my involvement in this matter.

“I was later informed that an email for wire information purportedly came from me. I did not send any emails regarding this transaction, I had no knowledge of the buyer or seller, and I was never a party to the transaction in any way.”

The investigation then led to William Noble Rare Jewels in Texas, which had consigned pieces to DuMouchelle and was also owed money.

By the end of 2018, DuMouchelle possessed approximately $12.5 million of Noble’s items, court documents show. In February 2019, another Detroit-area jeweler contacted William Noble to tell him his merchandise was being sold for 20 cents on the dollar.

DuMouchelle denied it and told Noble he had a customer interested in buying The Yellow Rose diamond.

He told Noble the buyer “would not allow him to take a profit” so he offered a $12 million price and asked Noble if he’d take $10 million for the sale and wire $2 million back to him.

Noble purportedly felt this wasn’t right and possibly illegal, court documents state, so he declined.

He told investigators he never sent the diamond, nor did he agree to sell it to DuMouchelle.

But that didn’t stop DuMouchelle.

In April, he allegedly sent Ritter an email with a copy of a contract for the purchase and sale of the Yellow Rose diamond for $16.5 million.

According to court documents, DuMouchelle told Ritter at the time that three wire transfers had been made by the purchaser in the amounts of $2 million, $4 million and $10.5 million, but no deposits or wire transfers of such amounts had been made, the investigation showed, as DuMouchelle had never actually bought or sold the diamond.

Also in February, court documents state Noble got six pieces he had consigned to DuMouchelle back, as well as a wire transfer of about $4.25 million for three pieces the latter said he’d sold for Noble.

But the investigation showed DuMochelle used proceeds from the $12 million Ritter had sent for the purchase of the yellow diamond—which Ritter thought was going to the diamond’s owner but actually went to the account belonging to DuMochelle and his wife—to pay Noble back.

According to court documents, Noble has made numerous attempts since February to reach DuMouchelle. Noble could not be reached for comment on the case by press time.

The second situation involves allegations of wrongdoing involving Jonathan Birnbach of JB International LLC in New York, who had bought and sold jewelry to DuMouchelle for years.

In late 2018, the two entered into a consignment agreement in which they would buy jewelry from estates and sell it for a profit at auction.

DuMouchelle told Birnbach 95 percent of the items sold at auction, but Birnbach indicated to the government he never received any proceeds.

To date, he has received only $500,000 of the approximately $2.5 to $3 million he is owed, the complaint states.

DuMouchelle did not respond to a request for comment by press time. An attorney has not yet been listed for the jeweler.

According to court documents, he is scheduled to appear in court on Dec. 5.
Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

Graff Fontainebleau Las Vegas
MajorsMay 28, 2025
Graff Unveils New Las Vegas Flagship

The 3,300-square foot location is the jeweler's largest store in North America.

New York Liberty 2024 WNBA Championship Ring
CollectionsMay 28, 2025
NY Liberty’s 2024 Championship Rings Honor Historic Win

The WNBA team received rings imbued with meaning, from leaf motifs and its Liberty torch to the number of diamonds used.

Jewelers Board of Trade logo
MajorsMay 28, 2025
Andrew Rickard Named JBT President

A longtime executive at RDI Diamonds, Rickard has served on the JBT board for the past five years.

Article Image 1.png
Brought to you by
Clienteling Isn’t a Buzzword. It’s an Essential Business Model.

More shoppers are walking out without buying. Here’s how smart jewelers can bring them back—and the tool they need to do it right.

Logos for Manufacturing Jewelers & Suppliers of America and Jewelers of America
MajorsMay 27, 2025
MJSA to Become Part of Jewelers of America

The two organizations have signed an affiliation agreement that’s expected to be finalized in the coming weeks.

Weekly QuizMay 22, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Al Capone Pocket Watch
AuctionsMay 27, 2025
Al Capone’s Patek Philippe Pocket Watch Back Up for Auction

The platinum and diamond watch is part of Sotheby’s upcoming Important Watches sale.

Kat Florence Lumina
AuctionsMay 27, 2025
182-Carat Paraíba-Type Tourmaline Sells for $487K

Recovered in Mozambique, “The Kat Florence Lumina” was part of Bonhams’ Hong Kong jewelry auction held last week.

antique_Vegas_2024_by_headshot_stories_9454.jpg
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the Globe

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

Mark Henry Gumdrop Bypass Ring
TrendsMay 27, 2025
Amanda’s Style File: Candy-Colored Gemstones

Get a taste of the delicious candy-like gemstones in this Amanda’s Style File.

Bliss Lau Bright Ring
CollectionsMay 23, 2025
Piece of the Week: Bliss Lau’s ‘Bright’ Ring

From Lau’s “Love of a Kind” series, the engagement ring was inspired by the moon and holds a different meaning depending on how it is worn.

GIA pearl report
GradingMay 23, 2025
GIA Updates Pearl Classification System

The lab has adjusted the scale it uses for nacre grading.

GCALbySarine Diamond Journey Certificate_1872x1052.jpg
Supplier BulletinMay 22, 2025
How to Put Natural Diamonds Back in the Spotlight

Sponsored by GCAL by Sarine

The late West Virginia jeweler David Ettinger
CrimeMay 22, 2025
NY Jeweler Sentenced in Shoving Death of Colleague at IJO Show

David Walton will serve three years’ probation after an incident in a hotel bar led to the death of West Virginia jeweler David Ettinger.

Watches of Switzerland store in Mall of America
FinancialsMay 22, 2025
Watches of Switzerland’s Full-Year U.S. Sales Climb 14%

The retailer also provided an update on how the tariffs situation in the U.S. is affecting its business.

Jorge Adeler, Wendy Adeler, Valentina Adeler
IndependentsMay 22, 2025
Adeler Jewelers Celebrates 50 Years

The family-owned jeweler in Great Falls, Virginia, will be celebrating its golden jubilee with a year’s worth of events.

Jose Hess Design Awards 2025 Trophy
Events & AwardsMay 22, 2025
Jose Hess Design Awards Announce Judges

The nonprofit elected five judges who will decide the winners of its design competition.

MJSA 2025-2026 Buyer’s Guide
MajorsMay 22, 2025
MJSA Releases 2025-2026 Buyer’s Guide

This year’s edition includes articles on the favorite tools of notable designers, evaluating when to outsource production, and more.

Bulgari Invisible Violet Necklace and Rainbow Flow Necklace
CollectionsMay 21, 2025
Bulgari Highlights Its Colorful Past in Phenomenal ‘Polychroma’ Collection

The jeweler’s high jewelry collection features extraordinary gemstones, like a 241.06-carat emerald and the world’s fourth-largest spinel.

Industry analyst Edahn Golan
ColumnistsMay 21, 2025
Edahn’s Take: Analyzing the 2025 ‘$100 Million Supersellers’ List

In a special column for the State of the Majors, Edahn Golan breaks down what the top-performing fine jewelry sellers are doing right.

Beyoncé bolo tie necklace
MajorsMay 21, 2025
Beyoncé Dons Brilliant Earth Necklace During Cowboy Carter Tour

The bolo tie necklace is inspired by “Queen Bey” and set with a nearly 15-carat black diamond.

Gem Legacy logo
SourcingMay 21, 2025
Gem Legacy Expands Advisory Council

The nonprofit focused on mining communities in East Africa has added three new members to its advisory council.

Annie Doresca
MajorsMay 20, 2025
Annie Doresca to Lead DCA as New CEO, President

Current Diamond Council of America President and CEO Terry Chandler is set to retire in January 2026.

QVC Group logo
FinancialsMay 20, 2025
QVC Group to Voluntarily Delist from Nasdaq

The company's Series A shares will continue to trade following a reverse stock split while its Series B shares will be delisted.

National Jeweler columnist Peter Smith
ColumnistsMay 20, 2025
Peter Smith: Leading Through Change

Communicating clearly with your staff is key to navigating turbulent times, writes columnist Peter Smith.

Luis Morais Miami Beach Flagship Interior
IndependentsMay 20, 2025
Luis Morais Opens Flagship, Launches Collection Celebrating 25 Years

The “Inner Journey” collection debuted as the brand celebrated its 25th anniversary, with designs inspired by Morais’ journey.

Exterior of Tanishq Santa Clara Storefront
MajorsMay 20, 2025
Tanishq Opens Seventh U.S. Store

Tanishq is expanding its presence in the United States with a new store in Santa Clara, California, which is its largest in the country.

New Cartier store at Los Angeles airport
FinancialsMay 19, 2025
Jewelry Sales a Standout for Richemont in 2024

Sales for Richemont’s four jewelry brands increased 8 percent, while watch sales picked up toward the end of the year.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy