Rob Bates to Release Latest Book in His ‘Diamond District Mystery’ Series
“Making a Killing in Diamonds” tells the story of Mimi Rosen, the disappearance of a scientist, and the murder of lab-grown diamond CEO.

The mystery is the fourth and final installment in his “Diamond District Mystery” series.
The fictional story is set on Manhattan’s 47th Street, as the murder of a lab-grown diamond CEO sends shockwaves through the industry, illuminating the high-stakes conflicts, ethical complexities, and generational tensions facing the trade today.
The 252-page novel explores themes that are relevant to both the jewelry trade and larger luxury industry.
In the book, Bates explores questions like “What happens when disruption collides with heritage? When innovation threatens not just profit but identity? When ‘ethical’ becomes a marketing buzzword instead of a moral commitment? And when technology allows us to replicate beauty, do we lose, or redefine, what makes something precious?”
The main character is Mimi Rosen, a journalist-turned-amateur-sleuth, who now works for her father’s diamond business and is once again drawn into a mystery as a scientist disappears and a lab-grown diamond CEO is murdered.
Throughout the story, Rosen finds herself stuck between two worlds, the old school diamond dealers of 47th Street that are bound by family, tradition, and silent codes of loyalty and the new frontier of lab-grown gemstones where startups are backed by venture capitalists promising disruption, transparency, and sustainability.
While investigating the murder, she is confronted with truth about the industry’s resistance to change, how it’s become more difficult to define what is “real,” and the blurred ethical lines that define what is valued in luxury.
“Lab-grown diamonds have been the biggest story in the industry for the past few years, and I knew I had to tackle it head-on in the novels,” said Bates who looked to the ethical and emotional dimensions of what we consider to be “real.”
“I first started working on this book around the time ChatGPT premiered. Everyone was really freaked out. At first, I was just going to focus on the diamonds industry, but the debate over artificial intelligence caused me to reflect on larger questions about disruption, technology, and how we define the term ‘real.’”
With Rosen as the main character of Bate’s story, he explores generational shifts in the way younger consumers approach value, identity, and purpose through the lens of this character, who was named after his mother.
Theses shifts, reflected in the real-life rise of self-purchasing women, consumers demanding sustainability, and renewed interest in transparency, form the emotional backbone of the series, he said.
Bates is an expert on the diamond business with more than three decades of editorial authority, investigative reporting, and insider knowledge.
As news director of JCK, Bates has covered every major development in the jewelry world over the last thirty years, including blood diamonds, sanctions, and the technical revolutions brought on by lab-grown gemstones.
He brings his characteristic wit and incisive voice to his latest novel on a plotted murder mystery that is grounded in the real, often hidden, dynamics of the gem and jewelry world.
Making a Killing in Diamonds is both a standalone mystery and a continuation of Rosen’s storyline.
Bates has also written “A Murder is Forever,” “Murder is Not a Girl’s Best Friend,” and “Slay It With a Diamond.”
Bates also co-hosts “The Jewelry District” podcast, which features leading voices from the trade.
Making a Killing in Diamonds is set to release on Aug. 12.
It retails for $16.95 and is available for pre-order on Amazon.
The Latest

The Western star’s 14-karat gold signet ring sold for six times its low estimate following a bidding war at U.K. auction house Elmwood’s.

The discussion, "Rebuilding the Jewelry Workforce," will take place on Saturday, May 16, in Troy, Michigan.

A matching pair of 18.38-carat, D-color diamonds from Botswana’s Jwaneng mine sold for $3.3 million, the top lot of the jewelry auction.

With the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.

Sponsored by A Diamond Is Forever


It was the second auction appearance for the fancy vivid blue-green diamond, which sold for $7.8 million at Christie’s Geneva 12 years ago.

Members of the U.S. Marshals Task Force took a 22-year-old man into custody. He was charged with tampering with evidence.

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

While the overall number of crimes was down, there were more incidences in which robbers pulled out guns, mace, or rammed cars into stores.

Jack Sutton Fine Jewelry is closing its store inside the downtown shopping center after 40 years in business.

Reena Ahluwalia’s painting of the rare red diamond is the first contemporary painting to join the National Gem Collection.

The price of gold has risen, affecting the number of pieces designers make, the materials they use, and how they position themselves.

Peter Smith gives tips on leading meetings, developing marketing, and making trade show appointments in the age of short attention spans.

The 11-piece “Medallions” capsule collection features five motifs: a crying eye, a heart on fire, a spiral, a flower, and a swallow.

From Gen Z’s view of luxury to “doom spending,” these are the six consumer trends to note this year.

The partners have announced the second cycle of the program, which has expanded to include a $25,000 student scholarship.

The owners of Staats Jewelers are heading into retirement.

Jeffrey Gennette, who retired in 2024 after 41 years with Macy’s, is the newest member of the jewelry retailer’s board of directors.

May babies are lucky to have emeralds, a gemstone admired for centuries, as their birthstone, writes Amanda Gizzi.

The new module allows retailers to plan, promote, and measure the success of events from a single dashboard.

NDC said in an open letter that Pandora’s statements about the carbon footprint of lab grown versus natural diamonds are inaccurate.

The diamantaire and industry leader succeeds Feriel Zerouki and said he will focus on being a “champion” for natural diamonds.

She wore our Piece of the Week, Glenn Spiro’s “Old Moghul Golconda” earrings, featuring fancy brown-yellow diamonds totaling 51.90 carats.

Two pieces were named “Best in Show,” one from the retail category and one from the supplier category.

The jewelry retailer noted resilience among its higher-end customers while demand softened for its lower-priced offerings.

Led by the 6.59-carat sapphire, the sale garnered $9.7 million, a record total for a Heritage jewelry auction.

In his new role, sales specialist Billy Welshoff will focus on the eastern United States.

























