Results 1 to 4 of 4
  1. #1
    New Member Zowie's Avatar
    Join Date
    Feb 2016
    Location
    Canada
    Posts
    46

    Default GIA Certificate for pearls

    Hello Pearl Experts,

    After having tried a forum search without success, I have a question to ask.

    What is an official documentation to grade a pearl, similar to what the GIA or AGS is doing for gemstones?
    Is there an organization that officially grades a pearl?

    If none, what would be a document to ask a trader in order to be sure that the purchased pearls correspond to an established standard, and possess certain characteristics? for example, their origin, size, AAA not AA, etc?

    Thank you!
    Last edited by Zowie; 05-23-2019 at 05:31 PM.

  2. #2
    New Member Zowie's Avatar
    Join Date
    Feb 2016
    Location
    Canada
    Posts
    46

    Default

    Just found that the GIA also provides reports on pearls.

    The GIA Pearl Identification Report details the quantity, weight, shape, color, identity (natural or cultured), mollusk (when determinable) they originated from, the environment they formed within (saltwater or freshwater), and any detectable treatments. The report includes a digital image. For any loose, mounted, or strung pearls.


    https://www.gia.edu/analysis-grading...e-report-pearl

    The GIA Pearl Identification & Classification Report includes all Identification Report information as well as classifications for luster, surface, nacre thickness, and matching (if applicable).

  3. #3
    Museum Pearl Senior Pearl-Guide.com Pearl Expert
    Join Date
    Jan 2011
    Location
    South Australia
    Posts
    6,181

    Default

    I think generally the report is often used when a 'natural' pearl/pearls need verification. I don't know that it would be worth pursuing a report on a cultured pearl.

  4. #4
    First-graft Pearl Senior Guide Member
    Join Date
    Oct 2009
    Location
    California
    Posts
    211

    Default

    AAA not AA
    Pearl grading is subjective -- one person's AAA is another's AA.

    With practice, you can tell the difference between freshwater and saltwater pearls, and you can measure with a caliper.

    Ebay has taught me to be skeptical of any COA.
    "Adopt the pace of nature: her secret is patience." ~ Ralph Waldo Emerson