The jewelry industry is not dying. But a certain kind of jewelry store — the kind that refuses to acknowledge what is happening around it — is in serious trouble.

Lab-grown diamonds are here. They are real diamonds. They are not cubic zirconia. They are not simulants. They are chemically, physically, and optically identical to mined diamonds, and the Federal Trade Commission updated its definition of "diamond" in 2018 to reflect exactly that.

That was seven years ago. And yet, in 2026, there are still retailers, old-school dealers, and even some trade commentators treating lab-grown diamonds like a passing trend that will go away if enough people repeat the phrase "no resale value" loudly enough.

It is not going away. And the stores that continue to dismiss, belittle, or ignore lab-grown are not protecting the trade. They are slowly handing their customers to the retailers who actually listen.

The Consumer Has Already Moved

This is the part of the conversation many traditional jewelers do not want to have. The consumer — the actual person walking into a store or browsing online — has already changed their mind.

Lab-grown diamonds now account for roughly 20 percent of the U.S. diamond jewelry market by unit volume and climbing. In bridal specifically — the category that built the modern diamond business — lab-grown is growing faster than any other segment.

Why? Because a 2-carat lab-grown engagement ring that costs $5,000 to $10,000 looks exactly the same as a natural diamond ring that costs $40,000 to $60,000. And the young couple sitting across the counter can do that math in three seconds.

The Resale Argument Is Tired

"But lab-grown has no resale value."

This is the argument that gets repeated most often, and it is the one that holds the least water when you think about it honestly.

Most natural diamonds also have poor resale value for the average consumer. If you walk into a jewelry store with a used 1-carat natural diamond, you are not getting anywhere close to what you paid. You might get 30 to 50 percent if you are lucky. In many cases, less.

The consumer is not buying a diamond as an investment vehicle. They are buying it because they want a beautiful ring, and they want to feel good about the purchase. If they can get a bigger, better-looking stone for a fraction of the price, the resale argument does not land the way it used to.

The Margin Opportunity Is Real

Here is where it gets interesting from a business standpoint: lab-grown diamonds can actually be better for the retailer's bottom line when positioned correctly.

Yes, the per-unit revenue may be lower. But the margin percentages can be strong, the sell-through rate is often higher, and the customer is more likely to add on — better setting, better band, maybe earrings to match — because they are not spending their entire budget on a single stone.

The stores doing this well are not choosing lab-grown instead of natural. They are offering both and letting the customer decide.

Both Can Win — If You Let Them

This is the part the industry needs to hear most clearly: lab-grown and natural diamonds can coexist. They serve different customers, different price points, and different occasions. A store that carries both is not betraying the trade. It is serving the full market.

Natural diamonds still command premium pricing for buyers who value rarity, origin, and tradition. That market is not going away. But it is also not the only market anymore.

The stores that will win in 2026 and beyond are the ones that understand this and adapt their merchandising, their sales language, and their mindset accordingly.

The Stores That Adapt Will Keep Winning

The jewelry business has always been about trust, presentation, and meeting the customer where they are. Lab-grown diamonds do not change that. They just add a new dimension to the conversation.

Smart retailers are already leaning in. They are training their staff. They are adjusting their cases. They are updating their websites. They are having honest conversations with customers instead of defensive ones.

And they are growing.

That is where the real value still lives in the jewelry business.