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Pearl Types
About Akoya Saltwater Pearls

AKOYA PEARLS

Hanadama

AAA

AA+


GIA GRADE

A/A+

AA

AA+

AAA

HANADAMA

LUSTER

Good

High

Very High

Highest

Highest/Gem

INCLUSIONS

Good

Very Good
75% inclusion free

Excellent
90% inclusion free

Excellent
95% inclusion free

Clean to None
98%-100% inclusion free

SHAPE

Off-Round to Round

Round

Perfectly Round

Perfectly Round

Perfectly Round

MATCHING

Good

Very Good

Excellent

Excellent

Excellent

NACRE

Thin to Medium
<0.35mm

Medium to Thick
>0.35mm

Thick
>0.5mm

Thick
>0.7mm

Very Thick
>0.8mm


Ivory Overtone

Rosé Overtone

Silver Overtone

Akoya saltwater pearls are the most popular type of luxury pearl sold today. Akoya pearls are perfect for casual or elegant dress and offer exceptional beauty and value. Akoyans have a consistent and desirable perfectly round shape with overtones in ivory, rosé, and silver. Akoya pearls are unmatched in their perfect roundness, incredible smoothness and sharp luster. Our Akoya pearls are available in sizes ranging from 6.0mm up to the largest possible Akoya pearl of 10.0mm.

Akoya saltwater cultured pearls are primarily produced in China and Japan by the Pinctada Fucata Martensii or Akoya oyster. Other regions including Vietnam and Thailand also produce some Akoya saltwater pearls.

To create a cultured Akoya saltwater pearl the oyster is nucleated with a small and round Mother of Pearl bead into the mantle tissue which encourages the oyster to produce the nacre that wraps around the bead to form a pearl. Nacre is also referred to as Mother of Pearl and is the same shiny substance that you find lining the inside of the shell. An Akoya oyster rarely produces more than one or two pearls at a time. Because the physical size of the Akoya oyster is much smaller than other pearl-bearing mollusks the largest possible Akoya pearls are 10.0mm and are very rare, the average size of harvested Akoya pearls is only 7.0mm.

Because a cultured Akoya pearl is nucleated with a round bead this influences the final shape of the pearls when they are harvested. Akoya pearls are sought after for their perfectly round shape and brilliant luster. Unlike other retailers, Select Pearls does not sell Akoya saltwater pearls below the AA+ quality rating.

As the image above illustrates, the various overtones found in Akoya pearls are very subtle. Overtone does not affect the value of Akoya pearls in either direction. It is important to note that black Akoya pearls are achieved through a dying process. The only naturally occurring black pearls are Tahitians.

AKOYA PEARL SIZES
 Click to download a printable Pearl Size Template

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

10.0

mm

Click

PSL HANADAMA CERTIFICATE
The image to the left is a numbered certificate that is issued with an Akoya strand that has been certified as Hanadama grade by the PSL.

Click on the picture to see a larger image and more information.

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