Omar Roy, 72, was arrested in connection with the murder of jeweler Dionisio Carlos Valladares.
Ark. jeweler, Embee to cut 8-carat Crater diamond
Stanley Jewelers Gemologist and Embee Diamonds are collaborating on an in-store event, inviting customers to see an 8-carat stone found at a nearby state park get cut before it’s set and sold.

North Little Rock, Ark.--When a large, high-quality rough diamond was unearthed recently at the Crater of Diamonds State Park in Arkansas, one local jeweler didn’t want to let the opportunity to hold an event involving the stone get away.
In late June, Bobbie Oskarson found an 8.52-carat diamond when she was visiting the park with her boyfriend. Dubbed the “Esperanza,” the rough diamond is among the largest uncovered there.
Now, Stanley Jewelers Gemologists in North Little Rock is partnering with Canada’s Embee Diamonds for an in-store cutting event featuring the Esperanza.
Interest in the state park led to the store taking a group of customers to visit it since it’s only two hours away. Embee’s Mike Botha, master diamond cutter, and his son Evert also were along for the trip.
Though no one in the group found any stones of significant size, Laura Stanley said they still had a great time.
Botha also did a diamond cutting demonstration in the store for an event that proved to be really popular. “People loved it. It was a wonderful event,” Stanley told National Jeweler.
That was almost exactly a year before Oskarson found the 8-carat stone. Stanley said that once the news of the big find came out, she got a call from Evert Botha, who really wanted to do something with the diamond and began trying to track down Oskarson.
When it turned out she was looking for guidance on what to do with her found diamond, the three began working together.
This started with a pre-evaluation of the rough at the AGS Laboratories. What they’ve found so far, according to Stanley, is that it’s Type IIa and that “it appears to be colorless and appears to have a very high clarity.” And while it’s hard to tell exactly how big the final stone will be at this time, they’re hoping it will end up yielding around 6 carats.
“This is the fifth-largest diamond from that park,” Stanley said. “If it maintains the 6 carats we’re hoping for, that would make it the fourth-largest cut diamond from Crater.”
Mike Botha will cut the stone at in-store event at Stanley Jewelers scheduled to take place next month. “He really wants to do this,” Stanley said. “He’s even going to ship his whole bench down there just for the event.”
After the stone is cut, likely into a fancy briolette,
Being involved in this find has Stanley thinking about a client she worked with who found the “Illusion,” an 8.66-carat diamond, at the park in 2011. She said although the stone wasn’t as high quality as the Esperanza, there still could be some opportunity. “This has sparked me thinking, maybe we should go back to him and see what can be done after all. You never know.”
It also has the jeweler thinking about the possibility of opportunities from the park in the future, but Stanley said that would really depend on the quality of the diamonds that are unearthed.
It doesn’t seem entirely out of the realm of possibility, however, as a fair number of good-sized diamonds have been unearthed at the park, which is a rarity in itself.
RELATED CONTENT: Why there are diamonds in Arkansas
Rather than being a kimberlite deposit, which is where many of the large, profitable diamond mines are found, Crater of Diamonds State Park is a lamproite deposit.
According to Bram Janse, a diamond exploration geologist and also an adjunct senior research fellow at the Centre for Exploration Targeting at the University of Western Australia in Perth, lamproites are formed from a large group of rocks rich in alkaline-potassic minerals including leucite, phlogopite and clinopyroxene, among others.
He added that one variety, olivine lamproite, resembles kimberlites in that it shows olivine crystals but is comprised of different minerals.
There are only four known olivine lamproite diamond mines in the world, Janse said. In addition to the Crater state park in Arkansas, there is the Argyle mine in Western Australia; Ellendale, also in Western Australia but which shuttered operations in early July; and the small Majhgawan mine near Panna in India.
The Latest

The New Orleans-based brand’s “Beyond Katrina” jewels honor the communities affected by the storm.

Lilian Raji explains why joining an affiliate network is essential for brands seeking placements in U.S. consumer publications.

As a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.

The organization has awarded a total of $42,000 through its scholarship programs this year.


The winner of the inaugural David Yurman Gem Awards Grant will be announced live at the 2026 Gem Awards gala.

As summer winds down, celebrate the sunny disposition of the month’s birthstones: peridot and spinel.

The Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.

Moshe Haimoff, a social media personality and 47th Street retailer, was robbed of $559,000 worth of jewelry by men in construction outfits.

Xavier Dibbrell brings more than a decade of experience to the role.

The addition of Yoakum, who will lead Kay and Peoples, was one of three executive appointments Signet announced Thursday.

The insurance company’s previous president and CEO, Scott Murphy, has split his role and will continue as CEO.

The nearly six-month pause of operations at its Kagem emerald mine earlier this year impacted the miner’s first-half results.

The necklace uses spinel drops to immortalize the moment Aphrodite’s tears mixed with her lover Adonis’ blood after he was fatally wounded.

The diamond miner and marketer warned last week that it expected to be in the red after significantly cutting prices in Q2.

Jewelers of America’s 35th annual design contest recognized creativity, artistry, style, and excellence.

The president made the announcement via Truth Social Wednesday, adding that India also will face a penalty for its dealings with Russia.

The luxury titan’s star brand Gucci continued to struggle amid a "tough" environment.

Its opening marks the completion of the retailer’s new 11,000-square-foot store in the Texas capital.

Respondents shared concerns about tariffs and commentary on the “Big Beautiful Bill.”

“Making a Killing in Diamonds” tells the story of Mimi Rosen, the disappearance of a scientist, and the murder of lab-grown diamond CEO.

Senior Editor Lenore Fedow learned a lot when she took a behind-the-scenes factory tour with the jewelry brand earlier this year.

The first-time exhibitors, set to debut at the New York City show, share a devotion to craftsmanship, storytelling, and material integrity.

The online auction house’s September sale will feature rough Brazilian emeralds of various qualities.

She’ll lead an executive committee consisting of President-Elect Bryan Moeller, Mitchell Clark, Bill Farmer, and Larry Rickert.

Announced Sunday, the deal will set the tax on goods imported into the United States from the European Union at 15 percent.

A new edition of the Italian brand’s “Ipanema” collection has debuted with gemstones that evoke Brazil’s breathtaking views.