[Jewelry making - Article 01013] - Re: [Orchid] Rhodium plating with diamonds in situ

[Chris Cart]

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    I dispute that platinum is a "little" gray or a "little" grey or
    that it is gray (grey) at all. I have a disc of all of the current
    platinum alloys used in the US including Plat/S+ 1 & 2. each disc has
    one half highly polished and the other half is a matte finish applied
    via bead blasting. The grey association is base on the low
    reflectivity of the matte finish and not the polished "high"
    reflectivity. 

    I put this set of Pt disks together to dispute people who make
    claims that Pt/Co is "blueish or Pt/Ru is "greyish". I have found
    that no one can pick between these disc and tell which is which. 

Chris


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