Upholding Integrity: Clarity and Ethics in the Gemstone Market

Revised Manual Introduces New Enhancement Symbols

The latest iteration of the “Gemstone Information Manual” now incorporates three additional symbols to denote specific forms of enhancement. These new designations include ASBL for assembled stones, such as doublets and triplets, HR for heat treatment with residue, and W for waxing. This expansion ensures a more comprehensive and precise representation of gemstone alterations.

Updated Gemstone Information and Care Directives

Beyond the new symbols, the Gemstone Information Chart has been thoroughly updated. Notable changes include identifying irradiation (R) and heat (H) as standard, stable treatments for pink Morganite. Furthermore, the “Special Advice” section now explicitly warns against using ultrasonic cleaning methods for certain delicate gemstones, including Jade and Moonstone, ensuring proper care and longevity for these valuable materials.

A Commitment to Ethical Trade Practices

John W. Ford Sr., CEO of AGTA, commended the Board of Directors and the AGTA Industry Rules Committee for their meticulous work on the 17th edition of the Manual. He emphasized that this resource offers practical, up-to-date guidance for both AGTA members and the global gemstone community, fostering responsible disclosure and sound business ethics.

Recognizing the Efforts of the Industry Rules Committee

AGTA President Bruce Bridges extended his gratitude to the committee members instrumental in the revision process. He highlighted their diligent efforts in maintaining the relevance and utility of the “Gemstone Information Manual,” stressing that these updates enable AGTA members to uphold consistent disclosure and care standards across the supply chain, thereby solidifying AGTA's leadership in setting industry benchmarks.

Clarity in Man-Made Gemstone Terminology

A significant amendment to the “Code of Ethics” pertains to the nomenclature for man-made gemstones. As per the policy approved in June 2026, AGTA members are now required to use the term “synthetic” when referring to manufactured materials that share the identical chemical composition, crystal structure, and physical and optical properties of their natural counterparts. The use of “lab-grown” as a standalone descriptor is no longer permitted.

Guidelines for Retail Jewelers on Synthetic Gemstones

The Manual further specifies that retail jewelers may describe these materials as either “synthetic” or “man-made,” always accompanied by the name of the gemstone, for instance, “synthetic Ruby.” This directive aims to eliminate ambiguity and promote clear communication with consumers.

Building Consumer Trust Through Consistent Language

Bruce Bridges underscored the critical role of clear and consistent language in cultivating consumer confidence. He asserted that this updated policy provides AGTA members with a straightforward standard for describing synthetic gemstones, simultaneously reinforcing the association's unwavering dedication to promoting natural-colored gemstones.