Unconfigured Ad Widget



No announcement yet.

Hanadama Akoya Pearls


  • Hanadama Akoya Pearls

    Hanadama Akoya Pearls Defined

    Hanadama is a Japanese word for "Spherical Flower" and is the term used to describe the highest quality and most highly valued akoya pearls from any given harvest. These pearls are separated from typical class grading prior to auction and are sold as individually separated lots.

    What Are Hanadama Pearls?

    Although there is no standardized, definitive grading system that accurately represents and compares the value characteristics of akoya pearls, there is a one-word description of the best akoya pearl produced today: Hanadama.

    Hanadama is a Japanese word meaning spherical flower. This is the name given to the highest-quality percentage of production by the founder of the cultured akoya pearling industry, Kokichi Mikimoto. The Hanadama grade is still used to this day to designate the absolute best of each akoya pearl harvest.
    Click image for larger version  Name:	fine akoya pearl strand.jpg Views:	3 Size:	20.1 KB ID:	449860
    Fine hanadama akoya pearls, courtesy of PearlParadise.com.

    Hanadama Pearls are the Best

    Hanadama means the best or the highest quality range akoya pearls. There cannot be a better grade. Even when comparing two strands of hanadama pearls, while one may be superior, it will still be hanadama.

    Hanadama Certificates Defined

    The Hanadama certification is given by the Pearl Science Laboratory of Japan; located in Tokyo, Japan. A strand of pearls cannot be referred to as Hanadama unless accompanied by this certificate. The original certificate must accompany the strand; otherwise the strand is not Hanadama. Watch this video for a closer look at the Hanadama pearl certificate.

    The Pearl Science Laboratory performs several tests on random pearls throughout the strand to determine its overall grade. The pearl surface is magnified and checked for inclusions. The nacre quality and depth is checked, by utilizing optical fibers and x-rays. The luster is determined by comparison. If all tests are performed and every value factor exceeds or meets the criteria, the strand is deemed Hanadama grade.

    It is important to note that only approximately half of the strands submitted for Hanadama analysis are accepted as such by the Pearl Science Laboratory.

    How Hanadama Pearls Are Graded And Selected

    The grading is not subjective, and must meet the following criteria:
    • The nacre depth must not show to be less than .40 mm on any randomly tested pearl
    • The teri-value analysis, (luster analysis) must be strong
    • Imperfection grade must read very slightly.
    Although the Hanadama certificate allows for thicker nacre grading than 0.4 mm, (which indicates a total nacre of 0.8 mm) it is important to remember that this test is performed on a random selection of pearls, and is not indicative of the overall nacre depth. Each pearl in any given strand will vary, and every Hanadama strand will invariably have pearls with nacre depths ranging from 0.40 mm to 1.00 mm and above. It is impossible to guarantee consistent nacre depth within a single strand.

    The Beauty Of Hanadama Pearls

    Every pearl is unique and that is the beauty of pearls. The Hanadama Pearl Certificate does not allow for a grading of zero imperfections. The reason is quite simple: all pearls will have some degree of imperfection. Pearls are organically created gems, and although the imperfections may be indistinguishable to the consumer, they still do exist. For that reason, the Pearl Science Laboratory of Japan does not allow for 'perfectly flawless' grading.

    Hanadama Pearls - The World's Finest Pearls?

    For further reading, we recommend the following guide to hanadama pearls written by an industry expert.

    Related Pearl-Guide Forum Threads:
    Last edited by CortezPearls; 03-16-2021, 01:15 AM.
      Posting comments is disabled.





    There are no tags yet.

    Latest Articles


    • Pearls in the Web of Life - Part 3
      by CortezPearls
      Pearls in the Web of Life – Part 3

      In our last entry, where we learned that the outside of pearl oysters acts as a small ecosystem in itself, but now we will “dive deeper” into the oysters themselves to find that this pattern repeats itself -in a kind of Hermetic understanding of the “As is Above, is Below” law- but with different actors involved. And, if you ever had the opportunity to stare into a live and open pearl oyster, you would begin experiencing a...
      11-24-2021, 05:07 PM
    • Is the Pearl I found in my Clam/Oyster/Mussel Valuable?
      by CortezPearls
      This is a Special Educational entry, but I believe it may be of value to some of our new visitors; it originates from an email I received just a week ago, but I have received this type of e-mails many, many times before... so, I will take this opportunity to have this information to the widest audience possible. The e-mail would say something like this:

      And this is a remarkably interesting thing to find out, and each pearl would be a unique case, a unique study in itself....
      11-09-2021, 07:55 PM
    • DIY Project: Make your very own Pearls in Half!
      by CortezPearls
      You have probably seen those photos of beautiful pearls that have been "cut in half" so you can see their inner structure, and you probably wondered how those are worked: are they sawed off? maybe a machete?

      Well, wonder no more! This little video explains in detail how you can make your very own, very nice...pearls in half.

      You will need:
      1. Sandpaper sheets, one of each: 60 (very rough), 80 (medium grit) and 220 (fine grit, also called "water
      10-26-2021, 08:30 PM
    • Pearls in the Web of Life - Part 2
      by CortezPearls
      In a sense, pearl oysters might be a “small ecosystem” of their own, a self-contained biome where a tug of war ensues and leads to eventual stability. But why does this happen? And does it hurt the mollusk? One of my Marine Biology teachers -Dr Fernando Manrique, a friend of Jacques Cousteau- once told us that the Ocean was teeming with Life, and that the hardest thing for many lifeforms to find was an “available apartment”, a place to settle and that would help them avoid being tossed...
      10-11-2021, 06:12 PM
    • Mabe Pearl Grading - 7) Dome Height
      by CortezPearls
      Part of the beauty of a Mabe pearl comes from its “dome” (height). When a Mabe pearl displays a low dome it most closely resembles a piece of mother-of-pearl shell than an actual pearl. Unfortunately, many Mabe pearls today are grown too flat, due to the intrinsic characteristic of the host shell: Pinctada shells are usually flatter than Pteria shells (the shells being much more concave) which does not allow for the use of tall implants, since these will touch the opposite shell and will cause the...
      08-24-2021, 12:20 AM
    • Mabe Pearl Grading - 6) Nacre Quality
      by CortezPearls
      The most important factor here is nacre thickness. Many Mabe are cultured for short periods of time (4 months) to obtain the most perfect shape, but at the expense of their nacre thickness and durability. On the other hand, there are producers that grown them for too long (over 12 months) and end up having pearls that have thick nacre, but their shapes are not standardized, and they may display one or more of the surface imperfections we discussed in the previous paragraph. There is usually a middle...
      08-23-2021, 04:47 PM