• Winter 2012

Winter 2012

  • $15.00

The PDF version of this issue is available at no charge. Visit

Natural Pearls from Australian Pinctada Maxima

Kenneth Scarratt, Peter Bracher, Michael Bracher, Ali Attawi, Ali Safar, Sudarat Saeseaw, Artitaya Homkrajae, and Nicholas Sturman

Detecting HPHT Synthetic Diamond Using a Handheld Magnet

Kirk Feral

Color Origin of Lavender Jadeite: An Alternative Approach

Ren Lu

Update on the Identification of Dye Treatment in Yellow or ìGolden" Cultured Pearls

Chunhui Zhou, Artitaya Homkrajae, Joyce Wing Yan Ho, Akira Hyatt, and Nicholas Sturman

Update on the Identification of Irradiated South Sea Cultured Pearls Using Electron Spin Resonance Spectroscopy Youngchool Kim, Hyunmin Choi, Bohyun Lee, and Ahmadjan Abduriyim

*Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

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