Oregon Jeweler Accused of Selling Lab-Grown Diamonds as Natural
Police say Douglas Wayne Gamble also swapped natural diamonds for synthetic stones and failed to return customers’ repairs.

According to a news release from the Salem Police Department, 57-year-old Douglas Wayne Gamble, owner of now-closed Timeless Jewelers, faces five counts of aggravated theft and six counts of theft in the first degree.
In Oregon, aggravated theft is a Class B felony involving stolen property worth $10,000 or more, while theft in the first degree is a Class C felony in which the property stolen is valued at more than $1,000.
Police said they first became aware there was a potential problem with the jeweler in late 2022 when 10 people who worked with Gamble to consign, design, or repair their jewelry reported they had lost money or property.
Some customers said lab-grown diamonds were sold to them as natural diamonds, or that the diamonds in their jewelry were swapped with synthetic stones.
Other customers said they never received jewelry they purchased or never got back pieces they left at Timeless Jewelers for repair, police said.
The store closed suddenly in October 2022 without notifying customers or returning jewelry that had been dropped off on consignment or for repair.
The Salem Police Department said $250,000 is its “conservative” estimate of losses in the case.
Gamble surrendered to Salem Police Department detectives on Sept. 15. He remained in custody as of Sept. 22, the Polk County Jail confirmed.
His attorney, Kyle Dundas of Miller Bradley Law LLC, could not be reached for comment.
Gamble’s bail is set at $100,000.
The Latest

The new pink sapphire version of the piece dances with its wearer in the brand’s “Icons After Dark” holiday campaign.

A choice that’s generated a lot of commentary, Pantone says “Cloud Dancer” marks a fresh start and encourages relaxation and creativity.

The manufacturer’s holiday campaign features a gift guide filled with trending designs and jewelry that can be personalized.

How Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.

The Florida independent expanded its store from 8,000 to 14,000 square feet, fulfilling the vision of its late co-founder, Jim Dunn.


Sponsored by De Beers Group

The classic 5600 series G-Shock has been scaled down to about a tenth of its size, becoming a fully functioning watch ring.

Roseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.

The association’s annual conference and gala will take place Feb. 4, 2026, during the Tucson gem shows.

The January show will include a workshop for jewelry retailers on implementing AI to strengthen their businesses.

Fellow musician Maxx Morando proposed to the star with a chunky, cushion-cut diamond ring designed by Jacquie Aiche.

The retailer, which sells billions in fine jewelry and watches, is suing the Trump administration and U.S. Customs and Border Patrol.

Black Friday is still the most popular shopping day over the five-day holiday weekend, as per the National Retail Federation’s survey.

The historic egg, crafted for Russia's ruling family prior to the revolution, was the star of Christie’s recent auction of works by Fabergé.

The retailer offered more fashion jewelry priced under $1,000, including lab-grown diamond and men’s jewelry.

The eau de parfum is held in a fluted glass bottle that mirrors the decor of the brand’s atelier, and its cap is a nod to its “Sloan” ring.

Vivek Gadodia and Juan Kemp, who’ve been serving as interim co-CEOs since February, will continue to lead the diamond mining company.

In addition, a slate of new officers and trustees were appointed to the board.

Witt’s Jewelry in Wayne, Nebraska, is the organization’s new milestone member.

Laurs is the editor-in-chief of Gem-A’s The Journal of Gemmology and an expert on the formation of colored gemstone deposits.

The single-owner collection includes one of the largest offerings of Verdura jewels ever to appear at auction, said Christie’s.

Michael Helfer has taken the reins, bringing together two historic Chicago jewelry names.

The guide features all-new platinum designs for the holiday season by brands like Harwell Godfrey, Ritani, and Suna.

During its Q3 call, CEO Efraim Grinberg discussed the deal to lower tariffs on Swiss-made watches, watch market trends, and more.

Rosior’s high jewelry cocktail ring with orange sapphires and green diamonds is the perfect Thanksgiving accessory.

The “Embrace Your True Colors” campaign features jewels with a vibrant color palette and poetry by Grammy-nominated artist Aja Monet.

Luxury veteran Alejandro Cuellar has stepped into the role at the Italian fine jewelry brand.





















