There was no single global gemstones jewelry update in August 2026. Instead, changes in disclosure, certification, reporting, and trade sharpened the distinction between natural, synthetic, and treated stones. These developments matter because labels and laboratory reports now carry greater compliance and purchasing consequences. Watch the September deadlines in Russia and at SCS, year-end Responsible Jewellery Council audits, and continued growth in lab-grown diamond trade.
Table of Contents
- What actually changed in August?
- Why lab-grown diamonds are becoming a separate market
- Which reports and audits should buyers verify?
- What the SCS certification retirement means
- A practical verification checklist
What actually changed in August?
The clearest regulatory change concerns Russian jewelry entering circulation from September 1, 2026. Artificial-origin gem inserts must be described as "synthetic," while prohibited wording includes diamond derivatives, quality or color grades, and terms such as natural, genuine, mined, or eco-friendly. The Russian Federal Assay Chamber says the requirements cover consumer information in any form, including online listings and marketing—not merely physical tags.
Jewelry already offered for sale before September 1 remains under the previous rules, according to the Federal Assay Chamber's requirements. For sellers serving Russia, compliance therefore requires a review of product pages, marketplace feeds, advertisements, packaging, and tags. A corrected tag alone may not fix a conflicting online description.
Why lab-grown diamonds are becoming a separate market
Dubai's new Lab-Grown Diamond Vertical formalizes a distinct commercial channel for manufactured diamonds. DMCC reported that the UAE traded 76.9 million carats in 2025, up 91.5% year over year, while trade value increased 7.5% to US$1.3 billion, as detailed by the Dubai Media Office and DMCC. The difference between volume and value growth points to an important market dynamic: far more material moved, but value rose much more slowly.
Buyers should not assume rapid trade growth means comparable price appreciation. DMCC separated the new vertical from its natural-diamond and colored-stone activities. Its stated rationale treats lab-grown diamonds as a scalable manufacturing and technical-specification business, not simply a substitute for natural diamonds.
Which reports and audits should buyers verify?
GIA now classifies qualifying lab-grown diamonds as "Premium" or "Standard" rather than applying natural-diamond grading nomenclature. It also laser-inscribes qualifying stones "Laboratory-Grown," under the GIA service introduced October 1, 2025. Appearance alone may not reveal origin because lab-created gems can share a natural gem's chemical, physical, and visual properties. Before buying, match the stone to its report, confirm the report type, and obtain written origin disclosure.
Responsible Jewellery Council members handling lab-grown materials also face audit deadlines. Members certified under the older Code of Practices before January 2024 had to complete combined COP 2024 and Laboratory-Grown Material Standard audits by May 1, 2026; later-certified members have until December 31, 2026. An audit or laboratory document answers a defined question. It does not automatically establish resale value, rarity, suitability, or equivalence to a natural stone.
What the SCS certification retirement means
SCS Standards will retire its SCS-007 Sustainably Produced Gemstones certification on September 1, 2026. SCS cited limited mining-sector adoption and the absence of a clear regulatory route for product-level chain-of-custody claims; existing certificates remain usable until they expire, according to the SCS retirement notice. Retirement does not mean every previously certified product loses its certification immediately.
It does mean sellers should check each certificate's expiration date and avoid implying that new certification remains available. The change also exposes a broader limit of sustainability language. A general environmental claim cannot replace documented custody, defined standards, and precise disclosure about which company, stone, or production stage the claim covers.
A practical verification checklist
Colored-stone documentation is expanding. GIA added origin reporting for opal, peridot, demantoid garnet, and jade in 2026, alongside its existing origin services. An origin opinion can document where a laboratory believes a stone came from, but it does not guarantee value.
Before purchasing or listing gemstone jewelry: The U.S. Federal Trade Commission continues to advise that treatments and related care requirements should be disclosed in writing. Keep that documentation with the receipt and laboratory report.
- Identify whether each stone is natural, laboratory-grown, synthetic, or treated.
- Ask for the disclosure in writing, including any special-care requirements.
- Match report numbers, inscriptions, measurements, and stone descriptions.
- Check whether a sustainability certificate is active or merely valid until expiry.
- Treat geographic origin as one factor, not an appraisal or investment promise.