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Why aren’t all pink diamonds equal?
Image Gallery (11 Images)
Figure 1. Brown and pink diamond crystals from the Argyle mine. Image courtesy: Rio Tinto Diamonds
Figure 2. Tiara set with 175 Argyle pink diamonds, offered for AU$2.25 million. Image courtesy: Linneys Jewellers
Figure 3. Argyle pink diamonds in tiara show strong blue fluorescence. Image courtesy: Sarah Edwards, during NCJV meeting
Figure 4. PDC diamonds pink and blue, SDTC brown CVD-grown diamonds. Image courtesy: GRS, Hong Kong
Ring with 2.74-carat light pink si1. Image courtesy: HRA Group
Figure 5. Synthetics show orangey pink, Argyle pinks show blue. Image courtesy: GRS, Hong Kong
Figure 6. CVD-grown PDC diamonds have specific blackish ‘feathers’. Image courtesy: GRS, Hong Kong
Figure 7. Columnar pattern indicates the diamond is grown by deposition. Image courtesy: GRS, Hong Kong
Figure 8. Pink CVD-grown diamonds. Image courtesy: SDTC
Figure 9. Photoluminescence and visible spectra instrument for diamonds at three GRS labs. Image courtesy: GRS, Hong Kong
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