Fromagerie François Olivier

Une Question sur nos produits ? +33.2.35.71.10.40
    • Accueil
    • Caves
    • Magasin
    • Philosophie
    • Contact
    • Accueil
    • Art
    • Rio Tinto Unveils ‘Impossibly Rare’ Diamond
     
    ssmedia
    vendredi, 01 avril 2016 / Publié dans Art

    Rio Tinto Unveils ‘Impossibly Rare’ Diamond

    Melbourne, Australia–Last year, Rio Tinto made an astounding discovery at its Argyle mine in Western Australia and never said a word about it.

    The diamond mining company unearthed a 9.17-carat piece of rough that yielded a stone Rio Tinto Diamonds’ Patrick Coppens describes as “impossibly rare”–a 2.83-carat fancy deep grayish blue violet diamond that it dubbed the “Argyle Violet.”

    It is the largest violet diamond ever recovered from the mine. And now it will embark on a world tour, of sorts, as part of the 2016 Argyle Pink Diamonds Tender.

    The Gemological Institute of America assigned the oval-shaped stone a color grade of fancy deep grayish blue violet. In a peer-reviewed article in the spring 2009 edition of Gems & Gemology, the GIA noted that the Argyle mine is the world’s only known source of type IaB hydrogen- and nitrogen-rich diamonds colored gray to blue to violet. The article also noted that the more violet-hued stones in this range are colored by nickel defects.

    Rio Tinto said the Argyle Violet has a clarity of SI1.

    Qu'est-ce que vous pouvez lire ensuite

    Bernie Madoff Jewelry Goes Up for Auction
    30 Enchanting Engagement Rings for Every Bride
    14 Jewellers Chosen for the 2016 CanadaMark Competition Finals

    Rejoignez-nous sur Facebook

    Eco Charte
    Le Cercle

    © 2017 Digisoft | Mentions Légales.

    HAUT