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

Jim Springer, owner of Dunkelberger’s Fine Jewelry, is heading into retirement.

When conducting its May consumer confidence survey, The Conference Board asked extra questions about consumers’ budgeting strategies.

The “Tunnel” charm, our Piece of the Week, celebrates Pride Month with its design inspired by hope and the light at the end of the tunnel.

As gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.

Up for auction at Sotheby’s, the collection of Tempelsman’s personal effects includes a Cartier Tank watch Jackie O. gifted him.


The Miami-based fine jewelry brand will host its first summer residency in the Colorado mountain town from June 5 to Aug. 23.

The organization also announced its international board of directors for the 2026-2027 term.

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

Saks Global confirmed the closure this week, spelling the end for a store that’s been part of downtown Dallas for more than 100 years.

Smith discusses how managers should handle a top performer's exit, warning that a poor response could have a lasting impact.

The Gemological Institute of America is now a 30 percent stakeholder in Tracr, the De Beers-backed blockchain for diamonds.

The retailer is bringing Rolex Certified Pre-Owned watches to five U.S. cities in 2026 for collectors to see, try on, and purchase.

The actress and entrepreneur stars in the jeweler’s new campaign that celebrates life’s quiet moments.

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

The jewelry retailer is zeroing in on Zales, Jared, Kay Jewelers, and Blue Nile as it looks to create unique brand identities for each.

Sotheby’s has appointed the former Phillips executive as its global head of private sales and retail in its watches division.

A private collection of five Paraíba tourmalines also will be up for sale at Sotheby’s High Jewelry auction in New York, scheduled for June 16.

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

The show started by honoring Mildred Marcano, ended with a tearful Beth Anne Bonanno, and recognized a dozen-plus designers in between.

The revamped online diamond marketplace will feature pricing intelligence and data-driven tools for more efficient buying and selling.

The miner said demand for higher-quality emeralds is stable, but there is notable caution in the market.

The “River of Heaven” necklace, our Piece of the Week debuting at Couture, combines 26 salt and pepper diamonds spaced by Tahitian pearls.

This year’s inductees include second-, third-, and fourth-generation jewelers.

The author, speaker, and entrepreneur will give his presentation, “Spiritual Billionaire,” on Saturday morning.

Three-time Grammy award-winning artist Nelly is set to perform at the annual event at Tao Beach on Sunday night.

Signet will integrate the online-only, natural diamond-focused jeweler into Blue Nile, which it wants to position as a higher-end retailer.

These up-and-coming jewelry brands are bringing their distinct aesthetic and unique point-of-view to the Design Atelier for the first time.























