Home GSI Lab Note: Rare phosphorescence in CVD Lab Grown Diamond Fig.4. Greenish yellow fluorescence (left), on rotation of 180 degrees strong orange color observed.

Fig.4. Greenish yellow fluorescence (left), on rotation of 180 degrees strong orange color observed.

Deepa Srinivasa, Chief Gemologist at GSI

Fig.4. Greenish yellow fluorescence (left), on rotation of 180 degrees strong orange color observed.

Fig.3: Raman microscope spectroscopy with N-V centres related peaks of CVD 1.547ct, emerald cut.
Fig.5. Phosphorescence seen post UV excitation for milli seconds only

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