Lab NotesGems & Gemology, Summer 2007, Vol. 43, No. 2

Summer 2007 G&G Lab Notes

Diamond with Bimineralic Inclusions HPHT-Treated Type Ia Diamond with a Green Component Caused by the H2 Defect Diamond with Intense “Rainbow Graining” Natural Color Hydrogen-Rich Blue-Gray Diamond Type IIa Diamond with Intense Green Color Introduced by Ni-Related Defects Diamond with Zigzag Cleavage HPHT-Grown Synthetic Diamond Crystal with Unusual Morphology and Negative Trigons Idocrase in Jadeite: A Heavenly Home Opal with Unusual Structure To view the full section, download the PDF above.

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