GIA 和 Gübelin 宝石实验室研究人员确认 paraíba 电气石的新来源

Join us at the Bangkok Gems & Jewelry Fair to explore a diverse range of gemstones, jewelry and industry solutions from leading Thai and international suppliers. Discover tools, components and machinery for the trade, and attend GIA seminars on pearls and diamond fluorescence.

CARLSBAD, Calif. – September 8, 2026 – Gordon E. Brown, Jr., a member of the GIA Board of Governors from 1988 to 2008 passed away in August.

CARLSBAD, Calif. – September 8, 2026 – Gordon E. Brown, Jr., a member of the GIA Board of Governors from 1988 to 2008 passed away in August.

研究人员确认了paraíba电气石的新来源

GIA 和 Gübelin 宝石实验室研究人员确认 paraíba 电气石的新来源

Examination of a green-blue apatite reveals goethite in a surface-reaching fracture.

Iridescent thin films in aquamarine resemble fireworks in the night sky.

A summary of the findings at the 2026 Tucson gem shows.

A diamond’s cloud and crystal inclusions create a unique scene.

Todd Wacks exhibits his exceptional graduated suite of 65 matched color-change pyrope garnets from Morogoro, Tanzania.

A cluster of needle inclusions in a pyrope-almandine garnet is reminiscent of a comet’s tail.

A variety of colors and effects were observed in “gold sheen” sapphire from eastern Kenya.

A natural nacreous pearl from the Mytiloidea superfamily displays a visual effect suggestive of a meteor shower.

An update on the global pearl market from vendors at the Tucson gem shows.

Patterns observed in a color-treated purple diamond reveal details about its growth history.

Jewelry designer Samira Mazloom draws awareness to endangered species with her unique “Fading Footprints” collection.

Calcitic crystals on the surface of a pen pearl display a play-of-color phenomenon under fiber-optic illumination.

Examination of a natural pearl reveals a cavity formation with thread-like filaments.

A vivid orangy yellow rough diamond displaying penetration twinning is examined in the Carlsbad laboratory.