Russia tightens synthetic diamond labeling rules for jewelry sales

Russia is drawing a harder line between mined diamonds and lab-grown stones, and the new rules could change how jewelers label, price, and merchandise diamond jewelry across retail counters and online listings. Starting September 1, synthetic stones in jewelry must be identified as synthetic, sold by weight in grams or kilograms, and kept apart from language reserved for natural diamonds.

The policy comes through Russian Government Order No. 657, dated May 30, 2026, and reaches far beyond a shop tag. It applies to consumer-facing information including websites, advertisements, certificates, and other product materials. Russian guidance says the correct term for cut diamonds that are not of natural origin is cut synthetic diamond, and it bars the use of diamond or its derivatives for synthetic stones.

The restrictions are unusually strict. Under the Russian guidance cited by Alrosa and IDEX Online, only synthetic or synth may be used for this category, not lab grown or lab created. The rules also prohibit a string of terms commonly used to flatter jewelry in the market, including precious, real, genuine, natural, mined, mineral, and eco-friendly. Carat weight is off the table as well; synthetic stones must be sold in grams, not carats.

Alexey Moiseev, a deputy minister in the Russian Finance Ministry, said the aim is to improve transparency, protect consumers, and make seller-buyer relationships more honest. That wording reflects the commercial pressure behind the change: Alrosa cited an estimate that some synthetic stones wholesale for under US$70 per 0.2 grams, or 1 carat, while still being marketed in jewelry cases beside natural-diamond pieces at far higher retail prices.

For manufacturers and retailers, the rule changes the language of the entire sales chain. A ring set with lab-grown stones can no longer lean on the same vocabulary that supports natural diamonds, and the weight standard pushes synthetic inventory into a different pricing frame. That may sound semantic, but in jewelry, semantics affect perceived value.

Russia’s approach also appears to be pushing beyond many other markets. Reporting has described France as the only country cited with similarly strict terminology limits, while India, the United States, the United Kingdom, and the European Union have all been moving toward tougher disclosure expectations without adopting Russia’s narrower ban on lab-grown and lab-created wording. Read together, those shifts suggest a broader compliance trend: synthetic goods are being pushed out of ambiguity and into clearer, more enforceable labels.