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  • Cover of Gems & Gemology Winter 2006 issue, featuring string of brown pearls

    Winter 2006

    • $15.00
    The PDF version of this issue is available at no charge. Visit www.gia.edu

    The Impact of Internal Whitish and Reflective Graining on the Clarity Grading of D-to-Z Color Diamonds at the GIA Laboratory
    John M. King, Thomas M. Moses, and Wuyi Wang

    Identification of "Chocolate Pearls" Treated by Ballerina Pearl Co.
    Wuyi Wang, Kenneth Scarratt, Akira Hyatt, Andy Hsi-Tien Shen, and Matthew Hall

    "Leopard Opal": Play-of-Color Opal in Vesicular Basalt from Zimápn, Hidalgo State, Mexico
    Robert Raymond Coenraads and Alfonso Rosas Zenil

    The Cause of Iridescence in Rainbow Andradite from Nara, Japan
    Thomas Hainschwang and Franck Notari

    2006 Annual Index

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

    GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout.
    Usually ships in 3-5 business days. 

    SKU: 430601