Lab-grown engagement rings just crossed half of new appraisals

Lab-grown engagement rings are no longer the alternative answer. In the first half of 2026 a lab-grown stone sat in 51% of newly appraised US engagement rings, according to the first BriteCo Jewelry, Diamond, and Watch Price Index, announced on August 31, 2026. Seven years earlier that share was 6%. This page sets out what the index found, why a second survey counts higher still, what a jewelry congress in Italy decided on September 7, and what each of those does to the money a couple has to spend on the wedding that follows.

Half of new rings now hold a lab-grown stone

BriteCo insures jewelry and watches, which means it appraises a great many rings. Its first annual index is built from those appraisals, recorded from January 2019 through June 2026, across all 50 states and Washington, DC. The lab-grown share of newly appraised engagement rings runs 6% in 2019, 47% in 2025, and 51% in the first half of 2026. INSTORE, the jewelry trade magazine, reported the crossing on September 3.

What this means if you are about to buy one: the lab-grown option is now the ordinary one at the counter, not a request you have to make twice. That is worth using. Ask for the same setting quoted both ways, with the stone size held constant, and ask for both quotes in writing.

Two numbers, two ways of counting

The Knot Worldwide's 2026 Real Weddings Study, published February 18, 2026 from 10,474 US couples married in 2025, puts the lab-grown share at 61%, which it describes as a 239% increase since 2020. BriteCo's figure for the same year is 47%. Both are rising steeply and neither is wrong.

They count different things. The Knot asks couples what they bought. BriteCo counts rings that were brought in to be appraised, which is a different crowd: rings whose owners decided they were worth insuring. Read together, the honest sentence is about half, and climbing, rather than any one precise share.

The same care applies to the prices. The Knot reports averages, BriteCo reports medians, and a median is the middle of the range rather than the arithmetic mean. On the lab-grown ring they land $43 apart anyway: The Knot's average spend is $4,600, BriteCo's median sales price is $4,557.

What the two stones cost, side by side

Here is the arithmetic, in full, so you can run it against your own numbers. The gap between the two median rings is $12,961 minus $4,557, which is $8,404. Set that beside The Knot's average US wedding in 2025, $34,000, and it is just under a quarter of the whole budget. Set it beside The Knot's average of $292 per guest, and it is about 29 more people in the room.

We are not telling you which stone to buy. The point of showing the subtraction is that a number that size belongs in the wedding conversation rather than in the jewelry conversation alone.

The stones grew as the price per carat fell

BriteCo's median lab-grown price fell from $4,622 per carat in 2019 to $2,057 in 2025, a drop of more than half. Natural diamonds sat at $8,428 per carat in 2025, roughly four times the lab-grown figure. Over the same years the median center stone in an engagement ring grew from 1.01 carats to 2.0, and The Knot's average lab-grown center stone for couples married in 2025 is 1.9 carats. These medians describe different middles of the same market, so they are not built to be multiplied by each other.

Read those two lines together and you can see where the saving went. It mostly turned into size. If you would rather it stayed a saving, there is a question worth asking each other first: what figure do you want to spend, before any stone is on the counter.

One thing the index does not measure at all is resale. Both of its numbers are retail: what a buyer paid, and what replacing the ring in a store would cost. Neither says what a ring would fetch if it were sold on, and no figure on this page does. Two questions follow, and both are for your insurer rather than your jeweler: is the ring scheduled at a fixed figure, and is that figure revisited at renewal?

The word on the tag may change

On Monday, September 7, 2026, meeting in Vicenza, Italy, CIBJO's general assembly and board of directors voted to replace laboratory-grown and laboratory-created with synthetic in its Blue Books, the terminology standards the jewelry trade works from. JCK reported the vote and the debate that preceded it.

It does not bind anyone selling a ring in the United States, and the American rulebook sits a step away from it. The Federal Trade Commission's Jewelry Guides recommend laboratory-grown, laboratory-created and [manufacturer name]-created. National Jeweler, reviewing those Guides again on September 9, 2026, notes that the FTC dropped synthetic from its recommended list in the 2018 revision without forbidding the word, on the reasoning that the evidence did not show it was deceptive in every instance. So the word CIBJO has just moved toward is the one American regulators moved away from eight years ago. JCK reported that the American Gem Trade Association intends to ask the FTC to revisit the question when the Guides next come up for revision, which the trade expects in 2028; its chief executive, John Ford, said consumers “deserve clear and accurate distinctions between natural diamonds and synthetic products.”

Nothing about the stone changes, only the vocabulary around it. The useful response is filing: keep the grading report and the receipt together with the ring, so that whichever word ends up on the tag, the description on your paperwork and the description on your insurance still say the same thing.

Where a saving this size usually lands

The Knot's study has one finding worth holding next to a decision this size. It reports that 85% of couples felt the economy in their planning, and that of the couples who moved their budget in response, 77% moved it up. Money freed on one line has a habit of moving to another line instead of leaving the wedding.

Invitations are one of the smaller lines and one of the easiest to fix exactly, because once they are digital nothing about them multiplies by the guest count. We make digital wedding invitations, so treat the next figures as ours rather than as a survey: Classic is $99 for up to 100 guests, Signature is $199 with no guest limit, and each is paid once. The per guest arithmetic for paper is set out in what wedding invitations cost, the two formats sit side by side in digital or paper invitations, and the rest of this year's numbers are in wedding trends 2026.

Five questions to ask before you buy

1. Ask for the same setting quoted twice, once with a natural stone and once with a lab-grown one of the same size, both in writing.
2. Ask which laboratory graded the stone and ask to see the report, whatever word is printed on the tag that week.
3. Ask whether the quoted price includes the setting, the sizing and the appraisal, since BriteCo's figures describe finished rings.
4. Ask your insurer which figure it pays out on, the sales price or the appraised value, and what it needs on file.
5. Set the ring figure and the wedding figure in the same conversation, because $8,404 is just under a quarter of the average US wedding.

How we put this together. On September 18, 2026 we read BriteCo's announcement and its index, The Knot Worldwide's 2026 Real Weddings Study release, the INSTORE and JCK reports on the CIBJO vote, and National Jeweler's September 9 refresher on the FTC's Jewelry Guides. Every figure above comes from one of those and is named where it appears. The subtraction and the comparisons between them are ours, and we have shown the working. Figures for our own product come from our price list rather than from any survey. We sell invitations, not jewelry, and we take no commission on a ring either way.