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  1. Cyril Roger Brossard

    The secret of the Pink Pearl.

    as seen here.
  2. Cyril Roger Brossard

    Chinese demand for jewellery depletes Japanese corals

    Most welcome. Japan has the capability, however many other ASEAN countries may be ill prepared to prevent such practice.
  3. Cyril Roger Brossard

    8th Tahiti Auction

    Most welcome. It would indeed be interesting to see how things will develop within a few years. IFREMER has been quite active in the field of pearl farming for decades now, (link here) hence this has been a long project with several press release always stating that the objective would indeed...
  4. Cyril Roger Brossard

    8th Tahiti Auction

    Translated with google... The last annual auction GIE Poe O Rikitea has once again exceeded all expectations. First day to more than 110 million francs, and a second 171 million while the organizers expected 151 million, this 8th edition has placed the head of Japanese buyers. An exceptional...
  5. Cyril Roger Brossard

    Chinese demand for jewellery depletes Japanese corals

    Not sure if this was shared already. Impact on ecosystem and on pearl farming (subsequently) is not to be under-estimated. As seen here. Stolen from the deep: Red corals are plundered from reefs to meet the growing taste for coral jewellery. ? ELIZABETH WOOD An article by YURIKO NAGANO...
  6. Cyril Roger Brossard

    Hi, Do you remember one thread about Indonesian pearl farms in which you posted some links of...

    Hi, Do you remember one thread about Indonesian pearl farms in which you posted some links of news paper from Indonesia describing the decrease in terms of quality and subsequent business losses? could you give me back the link? thank you.
  7. Cyril Roger Brossard

    A little honesty in Pearl Farming is in order

    Hi there, any feedback on Bio-Nuclei?
  8. Cyril Roger Brossard

    Natural saltwater pearls

    Hi, could you please clarify the above sentences, sounds contradictory to me. Hopefully more experience member will give you best advise. How big are the 'small dark grains'? Natural have no core...
  9. Cyril Roger Brossard

    Corroded pearls

    most welcome. Most experience forum users will give you a more appropriate answer. Just remember, re-polishing mean to say removing layers as to minimize surface disparities, hence smaller pearl...
  10. Cyril Roger Brossard

    New Akoya Mother Oyster Specie Innovated.

    This is a question for Vigor He, right? I have a feeling that they may use traditional methods hence what you described, many experiments have been done by Wada K. regarding inter-species operation (donor and mother), it includes a huge variety of pteria and pinctada used as donor for akoya...
  11. Cyril Roger Brossard

    Corroded pearls

    I think this should be posted in all jewelry shops... I am not sure if Hairspray is still as used as back in the 80's but nonetheless information to customer should be improved.
  12. Cyril Roger Brossard

    Radiocarbon age dating of pearls

    If the technology becomes widespread within GIA and other renown laboratories and if there is a will to date some famous jewels then yes it would be most interesting to try to check how old they really are. The thing is dating is more accurate for terrestrial samples as you understood it...
  13. Cyril Roger Brossard

    New Akoya Mother Oyster Specie Innovated.

    Please kindly excuse my lack of knowledge, I am definitely not a specialist, this said, the mortality rate seemed good but I am not so sure about this retention being something really competitive. Once again I am not familiar with the culture of Akoya in China. Thank you for your feedback, this...
  14. Cyril Roger Brossard

    New Akoya Mother Oyster Specie Innovated.

    Thanks for the feedback. so it is 41.43% of rejection along the cycle? pretty high no?
  15. Cyril Roger Brossard

    A little honesty in Pearl Farming is in order

    Well I was puzzled by this "organic" as well, they have an organized physical structure and are are derived from living matter... More than that is sadly unknown. It is made reference to a gel like capacity, hence a variable volume based on water content. This is the only information I got...
  16. Cyril Roger Brossard

    Fish head pearl

    SSEF 2013. We recently received an outstanding pearl brooch for testing. A hollow natural pearl had been carefully designed as the head of a mystic fish. With its astute smile and the two red glowing ruby eyes, it is a perfect example combining a large and somehow baroque-shaped hollow pearl...
  17. Cyril Roger Brossard

    Corroded pearls

    SSEF 2013. Although pearls, as organic gems, are commonly less stable than polished gemstones, we don?t often see pearls with obvious features of surface damage as a result of unfortunate care. A few months ago, however, we received for testing a very spectacular case of such damage. The item...
  18. Cyril Roger Brossard

    Basidiomycota perlus or the strange mushroom pearl

    I honestly have no clue, I have seen weird shaped pearls from Pinctada maxima but this one is quite unique:
  19. Cyril Roger Brossard

    Radiocarbon age dating of pearls

    Yes Caitlin, exactly!
  20. Cyril Roger Brossard

    Basidiomycota perlus or the strange mushroom pearl

    sorry, I posted too fast, SSEF based in Switzerland is the Swiss Gemmological Institute also known as Schweizerische Stiftung f?r Edelstein Forschung, that is Swiss Foundation for Gemstone Research. The origin of the article is therefore the SSEF and the year of the report is 2013. Hope this...
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