shape
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clarity

Diamond with internal graining

Discussion in 'RockyTalky' started by speedster29, Mar 14, 2019.

  1. speedster29
    Rough_Rock

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    by speedster29 » Mar 14, 2019
    Hi Everyone,
    I need your help deciding on the diamond I like. Should I buy Diamond with internal graining? any suggestion, opinion? I know your time is valuable and I appreciate your attention here...
    The Specs are
    Diamond shape: Round brilliant
    Carat : 3.07
    Color : I
    Clarity : VS2
    Cut Grade : X X X
    Depth : 61.1
    Table : 58
    Crown Angle : 33.5
    Crown pavilion : 41.0
    Florescence : Medium BLue
    Measurements : 9.31-9.35-5.71
    great proportions with HCA score : 1.2
    but the GIA report showing a pinpoint is not show. Internal Grinning is not show.
     
  2. lovedogs
    Ideal_Rock

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    by lovedogs » Mar 14, 2019
    do you have a picture or video?
     
  3. speedster29
    Rough_Rock

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  4. thebrady28
    Rough_Rock

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    by thebrady28 » Mar 14, 2019
    No expert - but wouldn't you be concern with the inclusions on the table?
    Pretty much catch the eye straight away
     
  5. lovedogs
    Ideal_Rock

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  6. lovedogs
    Ideal_Rock

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    by lovedogs » Mar 14, 2019
    Not really. It's on the table yes, but that image is VERY zoomed in. IRL the entire dimond is like 9mm across. So you'd have to zoom out a lot to be at "real" size. I don't think it will be noticible with the naked eye from a normal viewing distance.
     
    thebrady28 likes this.
  7. OcnGypZ
    Rough_Rock

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    by OcnGypZ » Mar 14, 2019
    I don't like inclusions on a table. With the med fluor and internal graining... I'd have to see it in person.
     
    Ss52 likes this.
  8. ringo865
    Ideal_Rock

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    by ringo865 » Mar 14, 2019
    Rhino has a school of rock video on YouTube that shows effects of internal graining. It is fascinating, and I don’t really get it, but there can be unfortunate effects from IG, possibly even in a high clarity stone.
     
  9. speedster29
    Rough_Rock

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    by speedster29 » Mar 14, 2019
    I’m waiting for more information.
     
    Ss52 likes this.
  10. TreeScientist
    Brilliant_Rock

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    by TreeScientist » Mar 14, 2019
    Yep, there's a fascinating article on graining as well:
    https://www.gia.edu/doc/WN06A1.pdf

    Of particular interest is Figure 13. As you can see, even in the stone were the graining resulted in a VVS grade, there's still a slight bit of haziness seen in a blackened lightbox. It's quite pronounced in the VS clarity grade based on graining.

    Granted, in each of the above examples graining was the grade-setting inclusion. In cases where graining is not the grade-setting inclusion, it may be a non-issue, but it also might cause haziness. You can typically see haziness due to graining in online videos, but not always. As with the other inclusions that may reduce transparency (clouds and twinning wisps) graining needs to be evaluated in person to determine the impact that it's having on the diamond in question.
     
    Hivona, speedster29 and OoohShiny like this.
  11. speedster29
    Rough_Rock

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    by speedster29 » Mar 14, 2019
    Great article Thank you so much!
     
  12. david b
    Shiny_Rock
    Trade

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    by david b » Mar 15, 2019
    The fact that the internal training is not marked on the diamond plot means it is of no significance.
    You have chosen a magnificent diamond and the Med Blue will give it a better color look.
     

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