Luster
Medium
Shape
Round/Near Round/Off Round
Surface(Social Distance)
Minor to Medium Blemishes
Blemish(Up Close)
2 or More Pits or Protrusions
With Grow Lines
Factors That Affect The Value of Pearls
The quality of pearls is basically determined by the following factors.
01
The quality and intensity of
the reflection from
the surface of the pearl.
the reflection from
the surface of the pearl.
02
The number of blemishes or
imperfections on
the pearl's surface.
imperfections on
the pearl's surface.
03
Round pearls are typically
the most expensive.
the most expensive.
04
Larger pearls tend to
be more valuable.
be more valuable.
05
White is the most common,
while gold and black
are equally precious.
while gold and black
are equally precious.
06
The Nacre thickness
affects the quality of the pearl.
affects the quality of the pearl.
Each jeweler establishes their own grading standards based on these conditions, and there are some diferences in the ratings. What is rated AAA by one jeweler may corrspond to AA by another.
Gingiberi Rating Criteria
AAAA
Luster:Mirror-bright
Perfectly Round
Virtually flawless
0–1 tiny flaw (magnified)
Extremely rare
AAA
Luster:Highly bright
Round/near-round
Minor marks
1–2 small flaws
Rare
AA+
Luster:Highly bright/Gentle
Round/off-round
Minor marks/medium blemishes
1–2 small flaws
Uncommon
AA
Luster:Gentle
off-round
medium blemishes
2+ pronounced flaws
Classic Quality
Our Selection Standards Vs.GUILD Certification
At GINGIBERI, we maintain pearl selection standards that far exceed industry norms. For instance, some of our
internally graded 2A Akoya pearls have successfully passed GUlLD's Hanadama certification -underscoring the
precision of our internal grading system and the high standards we uphold.
internally graded 2A Akoya pearls have successfully passed GUlLD's Hanadama certification -underscoring the
precision of our internal grading system and the high standards we uphold.
GINGIBERI AA
CERTIFIED
GUILD HANADAMA
Grades
Achieved four-star high quality
rating in the Guild Pearl Grading
System.(Magnificent)
Nacre thickness
Nacre thickness ≥ 0.4 mm
Color
white
Overtone
Moderate to very strong with color
Size
Dimension ≥ 6mm
Why Do We Offer a Guild Certificate?
We’ve partnered with GUILD Gem Laboratory,
one of the world’s most respected
gemological institutions, to offer third-party
certification for select pieces.
Known for its scientific rigor and
global grading system,
GUILD brings independent validation
to our already elevated standards.
We introduced GUILD third-party certification
to meet the needs of customers
who value formal verification.
How To Read An Guild Natural Report
Hover over any term for a description
The main certifcate of the GUlLD Pearl Grading Report is divided into left and right sections.covering four
information modules: Certifcate Information,Pearl Information, Identifcation Information, and Key
Conclusions.
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