Lab Notes Gems & Gemology, Volume 45, No. 1

Spring 2009 G&G Lab Notes


Cubic Zirconia Reportedly Coated with Nanocrystalline Synthetic Diamond
Diamond with Assemblages of K-Feldspar, Hematite-Magnetite, and Quartz in Etch Channels
Clarity Grading Radiation Stains in Diamond
Rare Mixed Type (Ia/IIb) Diamond with Nitrogen and Boron Centers
Purplish Pink Spinel from Tajikistan—Before and After Cutting
 
To view the full section, download the PDF above.