south sea pearls grading system di mutia

south sea pearls grading system
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Cultured South Sea Pearl Grades
South Sea pearls are graded much like Tahitian pearls and the two most commonly accepted systems of
grading are the A-D system, and the A-AAA system.
Although
color does
influence
the value
of South
Sea
pearls, it
does not

pearl grades

south sea pearls collections of abdurrachim.com

necessarily influence the grade. A strand of AAA grade golden South Sea pearls of a light yellow
coloration, for example, may be worth much less than an equivalent strand of deep, naturally-gold colored

pearls.
A-D
Grading
Top Gem

A-AAA US
Grading
Gem Grade

Description
Gem Grade Flawless pearl with excellent luster

Pearl exhibits no inclusions or imperfections prior to setting or
drilling
A

AAA

Flawless on at least 90% of pearl’s surface

Only 10% of pearl’s surface may exhibit slight, concentrated
imperfections
Only a single deep inclusion allowable

Pearl should drill or set clean to virtually clean
Luster very high to excellent*
A/B

AA+

Flawless on at least 80% of pearl’s surface

Only 20% of pearl’s surface may exhibit slight, concentrated
imperfections
Only one or two deep inclusions allowable

Pearl should drill or set clean to nearly clean
Luster is high to very high*
B

AA

Flawless on at least 70% of pearl’s surface

Only 30% of pearl’s surface may exhibit slight, concentrated
imperfections
Only one or two deep inclusions allowable
Pearl should drill or set nearly clean
Luster is high to very high*
C

A+

Flawless on at least 40% of pearl’s surface

Up to 60% of pearl’s surface may exhibit slight, concentrated
imperfections
Deep inclusions are limited to 10% of pearl’s surface
Luster is medium to very high*

D

A

At least 60% of pearl’s surface will exhibit flaws

Deep inclusions and/or white spots within inclusions on up to 20%
of pearl’s surface
Luster is poor to very high*

*South Sea pearls are known for their warm, satiny luster which does not typically exhibit the same
reflective qualities of other cultured pearls.
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