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 differences in the ratings. What is rated AAA by one jeweler may correspond to AA by another.
Gingiberi Rating Criteria
AAAA
Luster: Mirror-like brilliance
Shape: Perfectly round
Surface: Exceptional surface quality, 0–1 tiny mark(a pinpoint/slight bump/ growth line)visible only upon close inspection
Selection: Gingiberi Rare Collector Grade
AAA
Luster: High brilliance
Shape: Round to near-round
Surface: Very clean surface quality, 1–2 small marks(pinpoints/slight bumps/growth lines/shallow dimples, not obvious during normal wear
Selection: Gingiberi Premium Grade
AA+
Luster: Bright, with a soft glow
Shape: Round to slightly off-round
Surface: Clean surface, 1–2 small to moderate marks(pinpoints/slight bumps/growth lines/shallow dimples/minor unevenness)
Selection: Gingiberi Refined Grade
AA
Luster: Soft natural glow
Shape: Slightly off-round
Surface: Selected under Gingiberi’s elevated standard, 2+ marks(pinpoints/slight bumps/growth lines/shallow dimples/minor unevenness)
Selection: Gingiberi Essential Grade
AAAA
Luster: Mirror-like brilliance
Shape: Perfectly round
Surface: Exceptional surface quality, 0–1 tiny mark(a pinpoint/slight bump/ growth line)visible only upon close inspection
Selection: Gingiberi Rare Collector Grade
AAA
Luster: High brilliance
Shape: Round to near-round
Surface: Very clean surface quality, 1–2 small marks(pinpoints/slight bumps/growth lines/shallow dimples, not obvious during normal wear
Selection: Gingiberi Premium Grade
AA+
Luster: Bright, with a soft glow
Shape: Round to slightly off-round
Surface: Clean surface, 1–2 small to moderate marks(pinpoints/slight bumps/growth lines/shallow dimples/minor unevenness)
Selection: Gingiberi Refind Grade
AA
Luster: Soft natural glow
Shape: Slightly off-round
Surface: Selected under Gingiberi’s elevated standard, 2+ marks(pinpoints/slight bumps/growth lines/shallow dimples/minor unevenness)
Selection: Gingiberi Essential Grade
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 GUILD'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 GUILD'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 a Guild Natural Report
Hover over any term for a description
The main certificate of the GUILD's Pearl Grading Report is divided into left and right sections, covering four
information modules: Certificate Information, Pearl Information, Identification Information, and Key
Conclusions.
You can long-press the image to save it to your album for viewing.
You can long-press the image to save it to your album for viewing.
