Antique diamonds don’t need a trend cycle to justify their appeal. Still, it doesn’t hurt when a high-profile engagement ring brings them back into the public eye. Taylor Swift’s engagement ring—sporting an elongated antique cushion-cut diamond—has done just that, drawing renewed attention to vintage jewelry and reminding both consumers and the trade why well-made antique diamonds continue to hold their own.
For antique diamond dealers like Michael Goldstein, this renewed interest isn’t new—it’s a continuation of work he’s been doing quietly and consistently for decades.
At the Roskin Gem News Report, antique and estate diamonds have been part of the conversation since the very first issue, often through rare and important pieces appearing at Sotheby’s, Christie’s, Heritage, and other auction houses. These are jewels that define the category—not because they’re fashionable, but because they endure.
So when interest in antique diamonds began cresting again—and after spotting a Facebook reel of an 18-inch necklace set entirely with antique diamonds—it felt like the right moment to take a closer look at Michael Goldstein, Ltd.
Goldstein’s depth of experience, disciplined eye, and long-term approach have made him a familiar—and trusted—voice in this corner of the gem trade.
◈
◈
The Accidental Niche
By the time Goldstein found his footing in antique diamonds, he had already learned a hard truth about the modern diamond business: it wasn’t working for him.
“I came into the diamond business in 1978,” recalls Goldstein. “I started specializing in antique diamonds probably around ’86 or ’87—but it wasn’t some grand plan. It was amorphous. It wasn’t the only thing I was doing… at first.”
What changed everything was a small parcel and a bigger realization.
From Chance to Pattern
Goldstein’s first real win came when he bought a half-carat parcel from a Boston pawnbroker for $200 per-carat. Two days later, he walked into a store on Sansom Street in Philadelphia. The late Steve Shifman looked at him and said—politely but firmly—that he only dealt in antique stones. Goldstein said he had antique diamonds, showed him the parcel, and when asked the price, blurted out “$300.”
“I expected him to throw the goods back at me,” Goldstein says. “Instead, he wrote me a check. And that was that.”
A few months later, a Florida jeweler asked Goldstein to help sell a six-carat stone. The jeweler who ended up buying it turned out to be Dave Atlas – back in Philadelphia. That introduction proved pivotal.
“Dave would buy my entire inventory,” said Goldstein. “All two or three stones. Then four or five stones. He bought me out several times. After about six months of this, I finally asked him, ‘What’s going on?’ And he told me what he was doing with the stones. And that’s how I got into the business.”
Philadelphia was just incidental. Goldstein was always based in New York, calling on stores where the opportunity landed. The throughline wasn’t geography—it was demand.
“I wasn’t having much success hustling modern diamonds,” he admits. “But I’d buy an old stone, sell an old stone, buy another one or two, and sell those—and suddenly that was better than what I was doing elsewhere.”
Then came the phone call from State Farm.
◈
◈
“Spare parts” for the estate trade
What began as a few isolated transactions quickly revealed a pattern. Demand wasn’t coming from where Goldstein expected—but once he recognized it, the direction became clear.
“I remember it very well,” Goldstein says. “They asked if I’d do replacement work.” Goldstein said, in so many words, “Of course. And that’s how this really got it all started.”
That call marked the shift from selling individual stones to supplying a very specific need.
Goldstein describes his business simply—and accurately—as supplying the spare parts of the estate jewelry world.
“That was the concept,” he says. “Spare parts. Whether it was estate jewelry or insurance replacement, I had to have the goods.”
He recalls buying a 100-carat parcel from a Las Vegas pawnshop and feeding a steady stream of jewelers who needed two- and three-millimeter stones—and needed them “yesterday.”
“It wasn’t some ‘lightbulb moment,’” he says. “It was more like, ‘Oh my God—people actually want this stuff. And I’m one of the few people doing it.’ If you specialize, you stand out.”
Supplying those needs, however, required a very different way of thinking about inventory.
What’s rare—and what’s getting rarer
In antique diamonds, nothing is easy—and nothing is orderable.
“You buy it when you see it,” Goldstein says. “I can’t order it when I need it. You have to own the goods when they come. That’s always been the blessing and the curse of this business.”
Old European cuts are still more plentiful than most antique styles, simply because more were made. Cushions, on the other hand, have become dramatically harder to source.
“They were tough fifteen years ago,” he says. “Tougher ten years ago. Even tougher five years ago. Now they’re much tougher—because everybody wants them, and there are so few of them.”
◈
◈
Reproductions, repairs, and reality
Goldstein is blunt about the flood of stones made to look old.
“There’s been so much reproduction,” he says. “It depends who’s doing it, what equipment they’re using, and how much attention they’re paying to details.”
Complicating matters further: truly old stones have often been repaired—sometimes more than once.
“Is it an old stone that’s been repaired? Is it an old stone in good condition? Does it have a chip? Or is it brand new?” he asks. “There’s nothing easy about this.”
Experience matters more than any single test. The problem isn’t just identifying what’s old — it’s understanding how old stones have lived.
Goldstein cites Malcolm Gladwell’s account of “the Getty kouros”—where a supposed 530 BC Greek sculpture, purchased by the Getty Museum in the mid-1980s for approximately $9 million, was determined to be a forgery, where decades of connoisseurship outperformed laboratory analysis.
“Someone looked at it and said, ‘It’s not right.’ Why? Because they know,” he says. “Same thing here. You look at a thousand stones, it gets easier.”
He’s openly skeptical of “all-old” necklaces suddenly appearing in quantity.
“Rivière necklaces with all old stones—fifteen or twenty years ago, where were they?” he asks. “The stones may be old, but the necklaces are brand new. That’s just reality.”
That same judgment call carries over into one of the most visible — and misunderstood — areas of the antique diamond market.
Building antique-style necklaces
Nowhere is that tension more apparent than in antique-style diamond necklaces.
Goldstein has recently completed—and is currently producing—antique-style diamond necklaces using entirely antique stones.
One early necklace used an old mounting he had owned for years. A later commission involved months of sourcing matched K–L–M color stones.
“That was a challenge,” he says. “Matching those stones took months.”
The necklace was finished in silver-topped gold—historically accurate, but often misunderstood.
“Before or around 1900, there wasn’t a torch hot enough to work platinum,” Goldstein explains. “If a jeweler wanted white metal, they used silver on top of gold. Most true Victorian pieces are silver-top gold.”
Today, many silver-top mountings are new—but done in period-correct fashion.
“There’s demand for these,” he says. “Certain things just don’t go out of style.”
Why not all silver? Silver against the skin can cause irritation or an allergic reaction, often causing a discoloration of the skin. Gold will not.
But even with the right stones in hand, the real work often begins at the layout stage.
◈
◈
Layouts, calibration, and patience
Building a necklace layout is rarely straightforward.
“The front of the necklace is the easy part,” Goldstein says. “It’s the back—where stones start trending down—that’s hard. You need multiples, and you’re usually finding broken pieces or single stones.”
He doesn’t pre-select stones with a finished design in mind.
“I buy categories,” he says. “I buy every K–L–M stone. If you buy uncertified, you end up with a lot of J’s too.”
Color matters more than clarity. Table size matters more than most people expect.
“I’m not buying 60-table old Europeans,” he says. “They won’t match with 53s or 55s. When you buy well-made stones, the layout blends. If not, your eye will catch it immediately.”
And when those stones leave the bench and enter the laboratory system, complications can multiply.
Certification complications
Getting professional lab reports on antique stones remains a minefield.
“I took a stone out of an old mounting and had it certified,” Goldstein says. “It came back as a modern brilliant because it had a big table. Now it sits in the modern category and doesn’t sell.”
For necklaces, certification decisions are often economic.
“K–L–M stones are usually certified,” he says. “Whiter stones get expensive fast. Most old necklaces were not G–H colors anyway. If they are, something’s wrong.”
Despite those challenges, certain discoveries still trigger the same excitement they did decades ago.
What still excites him
After decades in the business, Goldstein still feels a rush.
“If I find a parcel with forty half-carat old Europeans, I feel like I hit the lottery,” he says.
But his real passion is for antique cushions.
“They truly excite me,” he says. “I love the outlines. I know the rarity. I know the salability.”
He feels the same about rose cuts—simply because he loves them.
After all these years, Goldstein’s philosophy hasn’t changed.
“Nothing beats experience,” he says. “And experience tells you one thing: in antique diamonds, you assume nothing—and you question everything.”
Tap here to visit Michael Goldstein at AntiqueDiamond.com
