In 1916, Kikichi Mikimoto harvested the first big large amount of cultured akoya pearls in Ago Bay, Japan. These akoya pearl earrings were in contrast to any the world had known. They were whole pearls with a mother-of-pearl nucleus produced by a culturing technique known as grafting. A small bead was placed in the host oyster’s reproductive organ in addition to a little bit of donor mantle tissue – the catalyst of pearl sac creation and nacre deposition – the formation of a pearl.

Nowadays akoya pearls remain a favorite staple in each and every woman’s jewelry collection and the most popular type of pearl sold at fine precious jewelry shops across the world. They provide flawlessly round shape, sharp luster, and brilliant white-colored entire body colors with hints of rose and silver overtones.

Deciding on a fine strand can be really tricky, however. Not in contrast to gemstones, the caliber of a strand will determine its elegance, sturdiness, and eventually its cost. Consumers need to be familiar with the Gemological Institute of America’s (GIA) 5 worth aspects created in 1967, and utilized to evaluate the quality of an akoya pearl. These are size, shape, original appeal, nacre density, and surface.


Akoya pearls tend to be relatively small. The normal dimension is 7 mm in size, as well as the average princess length is 17 to 18 inches. Most fall into the dimension range of 3 mm to the size of 10 mm. When all other value factors are consistent, bigger akoya pearls are more valuable.


Whilst shape is an important value sign of other sorts of cultured pearls including freshwater and Tahitian, akoya pearls are usually really circular. This is a result of the perfectly spherical bead implanted to the oyster. Nacre is deposited round the bead and most akoya pearl production is circular as a result. Other designs such as symmetrical drops and baroques do occur, but round pearls are thought much more valuable.

Original appeal

Luster will be the measure of high quality and quantity of light demonstrated from your surface of a pearl. Akoya pearls provide razor-sharp luster and reflection a lot like the top of the mirror. The sharper and more bright the reflection, the better beneficial the pearl. Luster is an essential value aspect to think about when choosing a strand of blue akoya pearl.

Nacre Thickness

The nacre thickness of the akoya pearl is very important. Today’s pearl industry is overrun in what is known in the industry as “brief culture” akoya pearls. These pearls happen to be harvested too soon and do not provide an sufficient covering of nacre over their mom-of-pearl bead. These pearls are generally found on craigslist and ebay and in fashion precious jewelry stores for very low costs. However the caveat is the fact that these pearls will never last, nor will they exhibit a sharp metal shine. Luster and durability are immediately linked to the pearl’s nacre thickness.

Surface area

Cultured pearls are the only organically created gemstones within the world. They do not need to become cut or refined to show away their beauty, so every will likely be as distinctive being a snowflake, demonstrating various kinds of growth characteristics. These growth qualities, no matter how little or how big, are classified as inclusions or blemishes. Simply because all cultured pearls exhibit some form of growth characteristic the united states Federal Industry Commission has disallowed the usage of the phrase “flawless” when explaining cultured pearls.

Even though growth qualities are universally apparent in cultured pearls, the level of these qualities is assessed inside the surface high quality of an akoya pearl. When other grading factors are consistent, the less imperfections or inclusions visible towards the naked eye, the greater beneficial the pearl.

A – AAA Grading System

Although a globally accepted grading system for cultured akoya pearls fails to presently exist, there does really exist within the business best practice standards which employ a grading system of A – AAA and hanadama.

A strand of hanadama quality pearls is certainly one that has been certified through the Pearl Scientific research Laboratory of China as exhibiting the very best quality traits with regards to form, original appeal, surface, and nacre thickness.

In order to have an akoya strand to become rated AAA all worth factors should fall in the top five percent in the high quality requirements. AAA grade strands are seen as the very best, non-hanadama licensed strands in the world.

A strand or pearl not meeting the requirements of AAA is just one that fails to reach the top five percent of each of the high quality requirements. A grade of AA will mean the strand falls inside the top 20 percent, along with a grade of AA would then mean the strand drops between grades AA and AAA.


There is a quickly-decreasing debate on cultured akoya pearl source along with its relationship to quality and worth. It had been as soon as considered that solely those from China were the very best high quality and many valuable. Today it is actually well recognized that black pearls are also created in South Korea, The far east, Vietnam, and even Australia. Pearls from Australia and The far east happen to be found to get heavier nacre than uxrkdv Japanese alternatives, and therefore are frequently of better general quality. Source will not be a worth factor utilized to grade cultured akoya pearls.

By understanding the worth factors associated with cultured akoya pearls, a buyer can make an informed choice when picking the perfect strand. The initial step is to discover a retailer that understands the intricate elements of akoya pearl grading and abides by the strictest standards. This will generally become a merchant that specializes in pearls and can have a big collection of various sizes and grades for easy comparison.

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