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J-MINI PRO MANUAL
Natural Rough Diamond Fluorescence
Common Natural Diamond Fluorescence
Natural Diamond Fluorescence Examples
7.2
Basic Scanning Diamond Identification
This mark indicates a confirmed CVD or HTHP laboratory grown diamond. No further
examination is required.
This mark identifies a diamond that requires review under an
internal or external fluorescent lamp.
If this stone glows from
faint to intense fluorescent color as the examples that are
shown below, it can be considered natural.
Shown below are instances of fluorescent
colors.
More than 30% of all natural diamonds exhibit some degree of fluorescence while nearly all
laboratory grown diamonds are inert or display only extremely faint fluorescence.
This mark indicates that the machine cannot automatically identify this stone. To identify this
stone, use the quad-screen view to simultaneously see comparative views as scanned and under
fluorescent, phosphorescent, and photoluminescent screens. It is suggested that the user re-
scan these stones.
If diamonds look like these examples in
both
the phosphorescent and photoluminescent
views, they are laboratory grown diamonds.
