Exceptional Pearls & new Pearl Developments (2012)

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Krzemnicki Swiss Gemmological Institute SSEF Photos © M.S. Krzemnicki, SSEF, except where indicated otherwise Exceptional Pearls & new Pearl Developments SGG, Zentralkurs April 2012, Flüeli-Ranft

© Swiss Gemmological Institute SSEF

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unique

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© Swiss Gemmological Institute SSEF

8 FW Cultured Pearl aggregate ©

Cultured pearls with “new” beads © Swiss Gemmological Institute SSEF 1) Natural pearls (of lower quality) as beads 2) Cultured pearls as beads - beadless freshwater CPs (e.g. China) - beadless saltwater CPs („Keshi“) - beaded CPs - additional CPs („Tokki“) 3) Shell pieces as beads (spherical or baroque-shaped) 4) Any material (not from a mollusk), such as ceramics, foam, marble

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natural pearl as bead

Cultured pearls “new” beads © Swiss Gemmological Institute SSEF

margaritifera

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pearl with beadless cultured pearl as bead

Cultured pearls with beadless freshwater cultured pearls as beads © Swiss Gemmological Institute SSEF

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pearls)

larger beaded

pearl.

Small additional cultured pearls forming during pearl cultivation with distinct onion-like growth structures.

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Swiss Gemmological

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pearls with shell pieces as beads © Swiss Gemmological Institute SSEF Specimens from Tahiti: Pinctada margaritifera Different cultured pearl products from Pinct. margaritifera © Swiss Gemmological Institute SSEF with shell piece as bead with shell bead beadless („Keshi“) with additional cultured pearl on the top („Tokki“)

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Thank you for your attention